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B1 noun 11 min read

渓谷

Q: What is the difference between 'tani' and 'keikoku'?

'Tani' is a general word for a valley, which can be wide and inhabited. 'Keikoku' specifically refers to a narrow, steep-sided gorge or ravine, usually with a river and scenic beauty. Think of 'keikoku' as a more dramatic version of a 'tani'.

Q: Is 'keikoku' only used for mountain areas?

Yes, almost exclusively. It implies a landscape shaped by mountains and river erosion. You wouldn't use it for a flat urban area or a coastal cliff unless there is a specific gorge formation there.

Q: How do I pronounce 'keikoku' correctly?

It is pronounced 'kay-ko-ku'. Make sure the 'kei' part sounds like the letter 'K' followed by a short 'i', and keep the 'o' and 'u' sounds short and clipped. The pitch usually rises after the first syllable.

Q: Can I use 'keikoku' to describe the Grand Canyon?

While you could, Japanese people usually use 'Gurando Kyanion' or 'Dai-kyokoku' (Great Canyon) because the scale of the Grand Canyon is much larger than the typical Japanese 'keikoku'.

Q: What are some famous 'keikoku' in Japan?

Some of the most famous are Kurobe Gorge in Toyama, Takachiho Gorge in Miyazaki, and Shosenkyo in Yamanashi. All are known for their stunning views and seasonal changes.

Q: Is 'keikoku' a common word in daily conversation?

It depends. If you are a hiker or like travel, you'll use it often. In the city, you might only hear it when discussing vacation plans or watching the news.

Q: What verbs go well with 'keikoku'?

Common verbs include 'otozureru' (visit), 'sansaku suru' (stroll), 'nagameru' (view), and 'keisei suru' (form). You also 'kudaru' (go down) or 'wataru' (cross) a gorge.

Q: Is there a slang version of 'keikoku'?

Not really, but young people might describe a beautiful gorge as 'emo' (emotional/scenic) or 'yabai' (amazing/insane).

Q: How do I write the kanji for 'keikoku'?

The first kanji 渓 has the water radical (氵) and a complex right side. The second kanji 谷 is the standard character for valley. Practice the right side of 渓 carefully!

Q: Can 'keikoku' be used metaphorically?

Yes, in literature it can represent a deep emotional divide or a difficult period in life, though this is much less common than its literal geographical use.

Practice it Examples Notes & Tips 渓谷 in 30 Seconds

Explanation 渓谷 in your Level:

At the A1 level, you can think of 'keikoku' as a special word for a 'beautiful valley with a river'. While you mostly use simple words like 'yama' (mountain) or 'kawa' (river), 'keikoku' is a word you might see on a travel poster or a map. It is a place where people go to see nature. You don't need to use it in complex sentences yet. Just remember that it is a noun and it describes a place. For example, if you go to a park and there is a deep place with water and trees, that is a 'keikoku'. You can say 'keikoku wa kirei desu' (the gorge is beautiful). It's a good word to recognize when you are traveling in Japan because it usually points to a very pretty place to take photos. Think of it as 'nature's art'. You might also see it in the names of places, like 'Todoroki Keikoku'. If you see these characters (渓谷), you know there is water and mountains nearby. It's a happy word for tourists!

At the A2 level, you can start using 'keikoku' to describe your weekend trips or nature. You should know that 'keikoku' is more specific than 'tani' (valley). A 'keikoku' is narrow and has steep sides. You can use it with basic particles. For example, 'keikoku ni ikimashita' (I went to a gorge) or 'keikoku de shashin wo torimashita' (I took photos at the gorge). You might also use adjectives like 'fukai' (deep) or 'hiroi' (wide - though usually they are narrow!). At this level, you should be able to understand short sentences in travel brochures that use this word. For instance, 'Aki no keikoku wa totemo utsukushii desu' (The gorge in autumn is very beautiful). It is a useful word for talking about hobbies like hiking or photography. You should also recognize the kanji: the first one has the 'water' radical on the left, which helps you remember it's related to water.

At the B1 level, you should understand the geographical and aesthetic nuances of 'keikoku'. It's not just a 'valley', but a 'ravine' or 'gorge' formed by erosion. You can use it in more complex sentences to describe the process of nature or the atmosphere of a place. For example, 'Kono keikoku wa nagai nen-tsuki wo kakete kawa ni yotte keisei sareta' (This gorge was formed by a river over many years). You should also be familiar with related terms like 'keiryu' (mountain stream) and know when to choose 'keikoku' over 'tani'. In your speaking, you can use it to explain why a certain place is famous, such as its 'koyo' (autumn leaves) or its 'suzu-shisa' (coolness) in summer. You might also encounter it in news reports about nature conservation or weather warnings. At this level, you are expected to handle the pitch accent correctly and use it naturally in conversations about travel and geography.

At the B2 level, 'keikoku' becomes a tool for more detailed descriptions and discussions. You can talk about the ecological impact of tourism on a 'keikoku' or the geological history behind its formation. You should be comfortable using the word in formal contexts, such as giving a presentation on Japanese landscapes or writing a report on environmental issues. You'll recognize it in literature where it might be used metaphorically to describe a deep, difficult-to-cross divide. You should also be aware of its synonyms like '峡谷' (kyokoku) and understand that '峡谷' is often used for larger-scale canyons. You can use advanced grammar patterns like 'keikoku to ieba' (speaking of gorges...) or 'keikoku nara-dewa no' (unique to a gorge...). Your vocabulary should also include compound words like 'keikoku-bi' (the beauty of a gorge) and 'keikoku-michi' (a path along a gorge).

At the C1 level, you possess a deep understanding of 'keikoku' and its place in Japanese culture and science. You can discuss the word's etymology and its representation in traditional Japanese arts like 'suiboku-ga' (ink wash painting). You understand how the concept of 'keikoku' fits into the broader Japanese aesthetic of appreciating nature's raw and rugged forms. You can use the word in academic discussions about geomorphology, explaining the specific types of erosion that lead to 'keikoku' formations. In literature, you can analyze how authors use 'keikoku' to set a mood or symbolize isolation. You are also sensitive to the register of the word, knowing that 'keikoku' carries a certain elegance and precision that simpler words lack. You can effortlessly switch between 'keikoku', '峡谷', and '渓流' depending on the exact nuance you wish to convey, and you can understand complex puns or wordplay involving these terms.

At the C2 level, your mastery of 'keikoku' is indistinguishable from that of a highly educated native speaker. You can engage in high-level discourse on the preservation of 'keikoku' as part of Japan's national heritage and the balance between tourism and ecology. You understand the subtle differences in how various regions of Japan use the term and can identify famous 'keikoku' by their descriptions alone. You can write evocative, poetic descriptions using the word, perhaps even composing 'haiku' or 'tanka' that center on the imagery of a gorge. You are aware of the historical development of the term and how its usage has evolved from classical literature to modern environmental science. Your use of 'keikoku' is perfectly nuanced, reflecting an appreciation for the word's ability to convey depth, time, and the sublime power of the natural world. You can also critique translations of the word, understanding why 'ravine', 'gorge', or 'canyon' might be chosen in different contexts.

Practice it Examples Notes & Tips

渓谷 in 30 Seconds

Keikoku refers to a deep, narrow ravine or gorge with steep sides and a river.
It is more formal and specific than 'tani', focusing on scenic and rugged beauty.
Commonly used in travel, geography, and nature-related contexts in Japan.
Formed by long-term water erosion, often celebrated for its seasonal foliage.

The Japanese word 渓谷 (keikoku) is a sophisticated geographical term used to describe a ravine, gorge, or canyon. Linguistically, it is composed of two kanji: 渓 (kei), which refers to a mountain stream or a small valley, and 谷 (koku/tani), which means valley. When combined, they evoke a specific image of a deep, narrow passage carved into the earth by the relentless force of flowing water over millennia. Unlike the simpler term tani (valley), which can refer to any depression between hills, keikoku specifically implies a more dramatic, steep-sided, and often more rugged landscape, typically found in mountainous regions. This word is a staple in Japanese tourism, environmental science, and literature, capturing the sublime beauty of nature that has inspired poets and travelers for centuries.

Visual Nuance: Think of a place where high rock walls rise on either side of a clear, rushing river. The air is cool, and the sound of water echoes against the stone. This is the essence of a 渓谷.

この渓谷は、秋の紅葉で有名です。(This ravine is famous for its autumn leaves.)

In daily life, Japanese people use this word when planning trips to the countryside, especially during the seasons of shinryoku (fresh greenery in spring) and koyo (autumn foliage). It carries a sense of majesty and natural artistry. Geologically, it refers to the product of fluvial erosion, where a river cuts through rock layers. In a cultural context, many famous 渓谷 in Japan, such as the Kurobe Gorge or the Takachiho Gorge, are considered spiritual sites or 'power spots' where the divine presence of nature is felt most strongly. Therefore, using the word 渓谷 rather than just tani elevates the conversation, suggesting a place of significant natural beauty or geological importance.

Geological Context: Used in geography to describe V-shaped valleys formed by erosion. It is more technical than the common word for valley.

険しい渓谷を川が流れている。(A river flows through the steep gorge.)

Furthermore, the word is frequently found in compound nouns related to outdoor activities. For instance, keikoku-bi (the beauty of a gorge) or keikoku-michi (a path along a gorge). It is rarely used for urban landscapes unless speaking metaphorically about 'building canyons' in a city, though biru-no-tani (valley of buildings) is more common for that. To master this word is to appreciate the Japanese love for specific topographical features that define their island nation's rugged interior.

Cultural Significance: Many gorges are protected as National Parks in Japan, signifying their role as national treasures of landscape aesthetics.

私たちは渓谷でキャンプをした。(We camped in the ravine.)

Using 渓谷 (keikoku) correctly involves understanding its role as a noun and the verbs it typically pairs with. Since it is a physical location, it often takes particles like に (ni) to indicate location, を (wo) to indicate movement through or over, and で (de) to indicate the place where an action occurs. For example, if you are hiking through a gorge, you would say keikoku wo aruku. If you are looking down into it, keikoku wo nozoku. The word often appears in descriptive sentences using adjectives like utsukushii (beautiful), kewashii (steep/rugged), or fukai (deep).

Common Verb Pairings: 訪れる (otozureru - to visit), 散策する (sansaku suru - to stroll), 眺める (nagameru - to gaze at), 形成する (keisei suru - to form).

何百万年もかけて、川がこの渓谷を造り出した。(Over millions of years, the river created this gorge.)

In formal or academic writing, keikoku is used to discuss topographical features and environmental conservation. For instance, 'The conservation of the gorge's ecosystem' would be keikoku no seitaikei hogo. In more casual conversation, it might be used when sharing photos from a weekend trip. 'Look at this gorge!' would be kono keikoku mite!. It is important to note that while keikoku is a noun, it can function as a modifier for other nouns using the particle の (no), such as keikoku no keshiki (the scenery of the gorge).

Sentence Structure: Descriptive: [Place Name] + は + [Adjective] + 渓谷 + です。 Example: 昇仙峡は美しい渓谷です。(Shosenkyo is a beautiful gorge.)

吊り橋から渓谷の底を見下ろした。(I looked down at the bottom of the ravine from the suspension bridge.)

When talking about the depth of the gorge, you can use the word fukasa (depth). 'The depth of the gorge is 100 meters' is keikoku no fukasa wa hyaku-metoru desu. If you want to describe the gorge as being 'hidden' or 'secluded', you can use hikyo (unexplored region) in conjunction with it. This adds a layer of mystery and adventure to the word. In summary, whether you are describing a physical location, a geological process, or a travel destination, keikoku provides a precise and evocative way to refer to these dramatic natural features.

Sentence Structure: Action: 渓谷 + を + [Motion Verb]。 Example: 渓谷をドライブする。(To drive through the gorge.)

冬の渓谷は静まり返っている。(The ravine in winter is completely silent.)

You will encounter 渓谷 (keikoku) in a variety of real-world contexts in Japan, ranging from media to everyday transportation. One of the most common places is in travel advertisements and brochures. Japan's tourism industry heavily promotes its natural landscapes, and 'Visiting the Great Gorges' is a popular theme for seasonal tours. You'll see headlines like 'Best 10 Keikoku for Autumn Leaves' in magazines like Jalan or Walker. On trains, especially those heading toward the mountains (like the Chuo Line or various private lines in Gunma and Tochigi), you might hear announcements or see posters for 'Keikoku-line' scenic trains.

Media Contexts: Weather reports often mention gorges when discussing flood risks or peak foliage times. Nature documentaries on NHK frequently use the term to describe geological wonders.

次は、渓谷入口に停車します。(Next, we will stop at the entrance to the ravine.)

Another common place is in station names or bus stop names. For example, Todoroki Ravine in Tokyo is famous for being a natural oasis in the city, and the nearby station is associated with the term. When hiking, you will see wooden signposts pointing toward the keikoku. In these contexts, the word serves as a functional landmark. It also appears in literature and song lyrics, often used to symbolize a deep, hidden place of beauty or a challenging path to navigate. In a more modern context, video games and anime set in fantasy or rural Japanese settings will use keikoku to name specific map locations, adding a sense of scale and adventure to the environment.

Public Announcements: Bus drivers or tour guides will often say, 'Migi-te ni miemasu no ga, XX-keikoku de gozaimasu' (On your right, you can see the XX Gorge).

このバスは渓谷を経由します。(This bus goes via the ravine.)

In scientific or educational settings, such as a geography class or a museum exhibit on geology, keikoku is used to explain the effects of erosion. You might see a diagram showing how a river cuts through rock, labeled with the word. In summary, while you might not use the word every day if you live in a flat urban area, it is an essential part of the vocabulary for anyone engaging with Japan's geography, travel culture, or media. It is a word that immediately conjures a specific, high-quality image of nature's power and beauty.

Literature & Art: Classical ink paintings (suiboku-ga) often depict 'keikoku' with mist and steep cliffs, reinforcing the word's association with traditional aesthetics.

テレビで美しい渓谷の特集を見た。(I saw a special feature on beautiful gorges on TV.)

While 渓谷 (keikoku) is a straightforward noun, learners often make mistakes regarding its nuance and pronunciation. One common error is confusing it with tani (valley). While all keikoku are valleys, not all valleys are keikoku. Using keikoku for a wide, flat valley where a village is located sounds unnatural; in that case, tani or bonchi (basin) is appropriate. Another mistake is the pronunciation of the first kanji. Some learners might confuse kei with kai or kyou. It is a long 'e' sound, like in 'cake' but shorter and more clipped: 'kay-ko-ku'.

Confusion with 'Kyokoku': 峡谷 (kyokoku) is a synonym, but it sounds much more academic or 'grand' (like the Grand Canyon). Using it for a small local ravine might sound overly dramatic.

✖ この広い平野は渓谷です。(This wide plain is a gorge.) -> This is incorrect because a gorge must be narrow.

Another subtle mistake involves the use of particles. When you say you are 'going to a gorge', you should use keikoku e iku or keikoku ni iku. However, if you are 'looking' at it, don't forget that the object of your gaze is the entire landscape. Some learners mistakenly use keikoku de miru when they mean keikoku wo miru. The former means 'to see (something else) while being inside the gorge', while the latter means 'to see the gorge itself'. Context is key here. Additionally, in writing, ensure you don't confuse the kanji 渓 with 鶏 (chicken) or 継 (succeed), which share similar components but have vastly different meanings.

Kanji Precision: 渓 has the 'water' radical (氵). If you omit it or use the wrong radical, the meaning is lost. Always check for the water radical when describing natural water features.

✖ 渓谷を登る。(To climb the gorge.) -> Usually, you hike 'along' (zoi) or 'through' (naka wo) a gorge. To climb a cliff, use 'gake wo noboru'.

Finally, avoid using keikoku for man-made structures like a drainage ditch or a small canal. It must be a natural formation. Even a very deep man-made trench would be called mizo or hori, not keikoku. Using the word correctly shows that you understand the distinction between the wild, natural world and the human-engineered one. By being mindful of these nuances, you can use keikoku to accurately and beautifully describe the rugged landscapes of Japan.

Appropriate Context: Use 'keikoku' when there is a river involved. If there is no water, it might just be a 'kyokoku' (canyon) or 'tani' (valley).

この渓谷の深さに驚いた。(I was surprised by the depth of this gorge.)

To truly master 渓谷 (keikoku), it is helpful to compare it with other words for valleys and natural depressions. The most common alternative is tani (谷), which is the general word for 'valley'. Tani is broader and can be used for any low area between mountains, including those where people live. Keikoku is a subset of tani that focuses on the steep, narrow, and rocky nature of the formation. Another similar word is 峡谷 (kyokoku). While often translated as 'gorge' or 'canyon' as well, kyokoku usually implies a larger, more massive scale than keikoku. For example, the Grand Canyon is always Gurando Kyanion or Dai-kyokoku, never just a keikoku.

Keikoku vs. Tani: Tani is general and casual. Keikoku is specific, aesthetic, and implies a river at the bottom.

谷底 (tanisoko) - the bottom of the valley. 渓谷の底 (keikoku no soko) - the bottom of the gorge.

There is also 渓流 (keiryu), which refers specifically to the 'mountain stream' itself rather than the entire valley structure. If you are talking about fishing or the movement of the water, keiryu is the better choice. If you are talking about the landscape including the cliffs, keikoku is more appropriate. In some contexts, sawara or sawa (mountain stream/marshy valley) is used by hikers to refer to smaller, less dramatic water-filled depressions. Understanding these distinctions allows you to choose the word that best fits the scale and character of the place you are describing.

Keikoku vs. Kyokoku: Kyokoku (峡谷) emphasizes the narrowness and the 'clamping' of the mountains. Keikoku emphasizes the stream and the valley together.

この渓谷は、峡谷と呼ぶにふさわしい規模だ。(This gorge has a scale worthy of being called a canyon.)

Finally, consider bonchi (盆地) and heiya (平野). These are antonyms of sorts in terms of topography. A bonchi is a wide basin surrounded by mountains, like the Kyoto basin. A heiya is a wide plain, like the Kanto plain. These words describe flat land, whereas keikoku is all about verticality and narrowness. By knowing these alternatives, you can navigate Japanese geographical descriptions with the precision of a native speaker, ensuring that your words accurately reflect the landscape you are envisioning.

Scale Comparison: Sawa (Small/Wet) < Tani (General) < Keikoku (Steep/Scenic) < Kyokoku (Grand/Massive).

日本の渓谷美は、世界に誇れるものだ。(The beauty of Japan's gorges is something to be proud of globally.)

How Formal Is It?

Fun Fact

The kanji for 'kei' (渓) originally depicted water flowing through a narrow gap, emphasizing the 'narrowness' that defines a gorge.

Pronunciation Guide

UK /keɪ.koʊ.ku/

US /keɪ.koʊ.ku/

Japanese has pitch accent rather than stress. In 'keikoku', the accent is often on the second syllable (e) or flat depending on the dialect, but usually follows a Low-High-High-High pattern.

Rhymes With

Heikoku (parallel/flat) Teikoku (empire) Meikoku (famous country) Seikoku (success - different kanji) Reikoku (cruel) Eikoku (UK) Saikoku (western provinces) Gaikoku (foreign country)

Common Errors

Pronouncing 'kei' as 'kai' (rhyming with 'eye').
Pronouncing 'ku' with a very long 'ooo' sound like 'cooo'.
Stressing the first syllable too heavily.
Confusing the pitch with 'keikoku' (warning), which has a different pitch pattern.
Mumbling the 'i' in 'kei' so it sounds like 'keko'.

Difficulty Rating

Reading 3/5

The kanji 渓 is slightly complex but common in place names.

Writing 4/5

Writing 渓 from memory requires practice with the stroke order of the right side.

Speaking 2/5

Pronunciation is simple, but pitch accent needs attention.

Listening 2/5

Easily distinguishable in a sentence about nature.

What to Learn Next

Prerequisites

山 (Mountain) 川 (River) 谷 (Valley) きれい (Beautiful) 深い (Deep)

Learn Next

峡谷 (Canyon) 渓流 (Mountain stream) 浸食 (Erosion) 地質 (Geology) 絶景 (Superb view)

Advanced

造山活動 (Orogeny) V字谷 (V-shaped valley) 名勝 (Scenic spot) 幽玄 (Profound beauty)

Grammar to Know

Noun + 沿い (zoi)

渓谷沿いに歩く。(Walk along the gorge.)

Noun + に向かう (ni mukau)

渓谷に向かって出発する。(Depart toward the gorge.)

Noun + からの眺め (kara no nagame)

渓谷からの眺めは最高だ。(The view from the gorge is the best.)

Noun + を通じて (wo tsuujite)

渓谷を通じて自然を学ぶ。(Learn about nature through the gorge.)

Noun + に囲まれた (ni kakomareta)

渓谷に囲まれた静かな村。(A quiet village surrounded by a gorge.)

Examples by Level

渓谷はきれいです。

The gorge is beautiful.

Simple noun + wa + adjective.

あそこに渓谷があります。

There is a gorge over there.

Using 'arimasu' for existence.

渓谷に行きましょう。

Let's go to the gorge.

Volitional form 'mashou'.

これは有名な渓谷です。

This is a famous gorge.

Noun + desu.

渓谷で写真を撮ります。

I will take photos at the gorge.

Particle 'de' for location of action.

渓谷の水はつめたいです。

The water in the gorge is cold.

Possessive particle 'no'.

きれいな渓谷ですね。

It's a beautiful gorge, isn't it?

Sentence ending particle 'ne'.

渓谷が好きです。

I like gorges.

Using 'suki' to express preference.

週末、家族と渓谷へ行きました。

I went to a gorge with my family last weekend.

Past tense 'ikimashita'.

この渓谷はとても深いです。

This gorge is very deep.

Adverb 'totemo' + adjective.

渓谷の近くに古い橋があります。

There is an old bridge near the gorge.

Location 'chikaku ni'.

渓谷を歩くのは楽しいです。

Walking through the gorge is fun.

Nominalizing the verb with 'no wa'.

秋になると、渓谷は赤くなります。

When autumn comes, the gorge turns red.

Conditional 'to' for natural consequence.

渓谷の入り口でバスを降りました。

I got off the bus at the entrance of the gorge.

Particle 'de' + 'orimashita'.

この渓谷には魚がたくさんいます。

There are many fish in this gorge.

Existence 'imasu' for living things.

渓谷の景色はすばらしいです。

The scenery of the gorge is wonderful.

Noun 'keshiki'.

この渓谷は、何万年もの侵食によって作られました。

This gorge was created by tens of thousands of years of erosion.

Passive voice 'tsukuraremashita'.

渓谷を下るボートツアーに参加しました。

I participated in a boat tour going down the gorge.

Verb 'kudaru' (to go down).

渓谷の底まで降りるのは大変でした。

It was hard to climb down to the bottom of the ravine.

Adjective 'taihen' (difficult).

霧に包まれた渓谷は幻想的でした。

The gorge wrapped in mist was mystical.

Passive participle 'tsutsumareta'.

渓谷沿いに遊歩道が整備されています。

A walking path is maintained along the gorge.

State of being 'te-imasu'.

この渓谷は、多くの野鳥の生息地となっています。

This gorge serves as a habitat for many wild birds.

Noun + to natte imasu.

渓谷の美しさを守るためにゴミを捨てないでください。

Please do not litter in order to protect the beauty of the gorge.

Purpose 'tame ni'.

その渓谷は、都会の喧騒を忘れさせてくれます。

That gorge makes you forget the hustle and bustle of the city.

Causative-benefactive 'wasuresasete kuremasu'.

渓谷の険しい崖を、熟練のクライマーが登っている。

An experienced climber is scaling the steep cliffs of the gorge.

Noun 'gake' (cliff) + verb 'noboru'.

ダムの建設が、この美しい渓谷の生態系に影響を与えている。

The construction of the dam is affecting the ecosystem of this beautiful gorge.

Impact 'eikyou wo ataeru'.

渓谷を流れる急流が、岩を滑らかに削り取っている。

The rapid stream flowing through the gorge is smoothly carving the rocks.

Verb 'kezuritotte iru'.

この渓谷は、地質学的にも非常に貴重な場所です。

This gorge is a geologically very precious place.

Adverbial '-teki ni' (geologically).

渓谷の奥深くに、ひっそりと佇む滝を見つけた。

Deep inside the gorge, I found a waterfall standing quietly.

Verb 'tatazumu' (to stand/be situated).

季節ごとに、渓谷は全く異なる表情を見せてくれる。

Every season, the gorge shows a completely different expression.

Metaphorical use of 'hyoujou' (expression).

渓谷に響き渡る鳥の声が、旅人の心を癒やす。

The voices of birds echoing through the gorge heal the hearts of travelers.

Verb 'hibiki-wataru' (to echo throughout).

その渓谷は、かつて修験道の聖地として知られていた。

That gorge was once known as a sacred site for Shugendo (mountain asceticism).

Passive past 'shirarete ita'.

悠久の時を経て形成されたその渓谷は、大自然の驚異を如実に物語っている。

Formed over eternity, that gorge vividly tells the story of nature's wonders.

Advanced phrase 'nyojitsu ni monogataru'.

渓谷の底に沈む静寂は、日常の煩わしさを一瞬で拭い去ってくれる。

The silence sinking to the bottom of the gorge wipes away daily annoyances in an instant.

Metaphorical verb 'nugui-saru'.

地殻変動と河川の浸食が織りなす渓谷美は、まさに芸術の極致と言える。

The beauty of the gorge, woven by crustal movements and river erosion, can truly be called the pinnacle of art.

Compound verb 'ori-nasu'.

渓谷を吹き抜ける一筋の風が、夏の暑さを和らげてくれた。

A single breeze blowing through the gorge eased the summer heat.

Verb 'fuki-nukeru'.

その渓谷の地形は複雑怪奇で、迷い込めば二度と戻れないという伝説がある。

The topography of that gorge is so complex and strange that there is a legend that if you get lost, you can never return.

Four-character idiom 'fukuzatsu-kaiki'.

渓谷の断崖絶壁に根を張る松の木に、生命の逞しさを感じる。

I feel the robustness of life in the pine trees taking root on the sheer cliffs of the gorge.

Compound 'dangai-zeppeki' (sheer cliff).

開発の名の下に、多くの渓谷がその姿を変えつつあるのは嘆かわしいことだ。

It is lamentable that many gorges are changing their appearance under the name of development.

Grammar 'tsutsu aru' (in the process of).

渓谷の深淵を覗き込むと、自然に対する畏敬の念が湧き上がってくる。

Looking into the abyss of the gorge, a sense of awe toward nature wells up.

Noun 'ikei-no-nen' (sense of awe).

この渓谷の特異な地層配置は、数百万年前の激しい造山活動を雄弁に物語っている。

The unique stratigraphic arrangement of this gorge speaks eloquently of the intense orogenic activity millions of years ago.

Academic phrase 'yuuben ni monogataru'.

文豪たちはその作品の中で、渓谷の幽玄な美しさをしばしば孤独の象徴として描いた。

In their works, great writers often depicted the mysterious, profound beauty of the gorge as a symbol of solitude.

Aesthetic term 'yuugen'.

渓谷を流れる水のせせらぎは、カオス理論におけるフラクタル構造を彷彿とさせる。

The murmuring of water flowing through the gorge is reminiscent of fractal structures in chaos theory.

Advanced verb 'houfutsu saseru'.

その渓谷一帯は、固有種の宝庫として生物学的に極めて重要な位置を占めている。

The entire gorge area occupies an extremely important biological position as a treasure trove of endemic species.

Phrase 'juuyou na ichi wo shimeru'.

渓谷の光と影が織りなすコントラストは、写真家の創作意欲を激しく刺激する。

The contrast woven by the light and shadow of the gorge intensely stimulates a photographer's creative desire.

Noun 'sousaku-iyoku'.

観光資源としての渓谷の利用と、その脆弱な環境保護とのバランスを保つことは至難の業だ。

Maintaining a balance between the use of the gorge as a tourism resource and the protection of its fragile environment is a Herculean task.

Idiom 'shinan-no-waza' (extremely difficult task).

渓谷の深奥に潜む未踏の地は、現代においてもなお、探検家たちの心を惹きつけてやまない。

The unexplored lands hidden in the depths of the gorge continue to attract explorers even today.

Grammar 'hikitsukete yamanai'.

古来より、渓谷は俗世から切り離された別天地として、隠遁者たちの憧憬の的であった。

Since ancient times, the gorge has been an object of longing for hermits as a world apart, separated from the mundane world.

Formal term 'shoukei-no-mato'.

Common Collocations

渓谷美

渓谷を散策する

渓谷沿いの道

深い渓谷

険しい渓谷

渓谷鉄道

渓谷の紅葉

渓谷を形成する

渓谷に佇む

渓谷を跨ぐ

Common Phrases

渓谷を渡る風

— The breeze that blows through a gorge. Often used to describe a refreshing feeling.

渓谷を渡る風が心地よい。

渓谷の底

— The very bottom of the gorge, where the river flows.

渓谷の底まで光が届かない。

渓谷の入り口

— The starting point or entrance to a scenic gorge area.

渓谷の入り口に集合してください。

隠れた渓谷

— A hidden or lesser-known gorge. Often used in travel blogs.

ここは地元の人しか知らない隠れた渓谷だ。

渓谷のせせらぎ

— The sound of the murmuring water in the gorge.

渓谷のせせらぎを聞きながら眠る。

渓谷を望む

— To have a view overlooking a gorge.

ホテルの部屋から渓谷を望むことができる。

渓谷の絶景

— A superb or breathtaking view of a gorge.

この展望台からは渓谷の絶景が楽しめる。

渓谷探検

— Exploring a gorge, often implying a bit of adventure.

子供たちと渓谷探検に出かけた。

渓谷の岩肌

— The rocky surface of the gorge walls.

荒々しい渓谷の岩肌が露出している。

渓谷を下る

— To go down a gorge, usually by boat or along a path.

急流の渓谷を下るスリルを味わう。

Often Confused With

渓谷 vs 警告 (keikoku)

Same pronunciation but means 'warning'. Distinguished by context and kanji.

渓谷 vs 渓流 (keiryu)

Refers to the stream itself, while keikoku is the whole valley.

渓谷 vs 峡谷 (kyokoku)

Used for larger scale canyons. Keikoku is the standard for Japanese gorges.

Idioms & Expressions

"渓谷の深きに遊ぶ"

— To find peace or enlightenment deep in nature. A literary expression.

俗世を離れ、渓谷の深きに遊ぶ。

Literary

"渓谷のこだま"

— An echo in a gorge. Used to describe something that resonates deeply.

彼の叫びは渓谷のこだまとなって消えた。

Poetic

"渓谷の隠れ家"

— A retreat or secret spot located in a gorge.

ここはまさに都会の喧騒を忘れる渓谷の隠れ家だ。

Journalistic

"渓谷の涙"

— Metaphor for a small waterfall or dripping water on a cliff side.

岩肌を伝う水は、まるで渓谷の涙のようだ。

Poetic

"渓谷の守り神"

— A local deity or spirit believed to protect the gorge.

古い祠が渓谷の守り神として祀られている。

Spiritual

"渓谷の調べ"

— The 'melody' of the gorge (the sound of water and wind).

渓谷の調べに耳を傾ける。

Literary

"渓谷の主"

— The 'master' of the gorge, usually a large fish or a legendary creature.

この淵には渓谷の主が住んでいるという。

Folklore

"渓谷の懐"

— In the bosom of the gorge. Used to describe being deep inside nature.

大自然の渓谷の懐に抱かれる。

Emotive

"渓谷の迷宮"

— A maze-like gorge with many twists and turns.

一度入り込むと抜け出せない渓谷の迷宮。

Fantasy/Fiction

"渓谷の吐息"

— The mist rising from a gorge in the morning.

朝もやは、渓谷の吐息のように白く立ち込めている。

Poetic

Easily Confused

渓谷 vs 谷 (tani)

Both mean valley.

Tani is general and can be flat or inhabited. Keikoku is steep, rugged, and usually natural/scenic.

この谷には村があるが、あの渓谷には道さえない。

渓谷 vs 盆地 (bonchi)

Both involve mountains.

Bonchi is a wide, flat basin. Keikoku is a narrow, deep cut.

京都は盆地だが、近くに美しい渓谷がある。

渓谷 vs 川 (kawa)

Both have water.

Kawa is just the water/river. Keikoku is the land formation including the cliffs.

川が渓谷を流れている。

渓谷 vs 峠 (touge)

Both are mountain features.

Touge is a mountain pass (the high point to cross). Keikoku is a low point (the gorge).

峠を越えて渓谷へ下りる。

渓谷 vs 崖 (gake)

Both are steep.

Gake is just the cliff face. Keikoku is the entire valley system.

渓谷の両側は切り立った崖になっている。

Sentence Patterns

[Place] は [Adjective] 渓谷です。

ここはきれいな渓谷です。

渓谷へ [Verb-masu] に行きます。

渓谷へ遊びに行きます。

渓谷には [Noun] がたくさんあります。

渓谷には珍しい植物がたくさんあります。

渓谷を [Verb-te] みると、[Discovery]。

渓谷を歩いてみると、古い寺を見つけた。

渓谷の [Noun] は、[Metaphor] のようだ。

渓谷の霧は、生き物の吐息のようだ。

渓谷という [Definition] において、[Statement]。

渓谷という特異な地形において、独自の進化を遂げた生物がいる。

[Reason] ので、渓谷は [State] です。

雨が降ったので、渓谷は増水しています。

渓谷 [Particle] 関する [Noun]。

渓谷に関する歴史を調べる。

Word Family

Nouns

渓谷 (keikoku - gorge)

渓流 (keiryu - mountain stream)

渓谷美 (keikokubi - beauty of a gorge)

渓谷鉄道 (keikoku tetsudo - ravine railway)

Verbs

渓谷をなす (keikoku wo nasu - to form a gorge)

Adjectives

渓谷のような (keikoku no you na - gorge-like)

谷 (tani - valley)

峡谷 (kyokoku - canyon)

岩壁 (ganpeki - rock wall)

侵食 (inshoku - erosion)

清流 (seiryu - clear stream)

How to Use It

frequency

Common in travel and nature contexts; rare in urban daily life.

Common Mistakes

Using 'keikoku' for a wide valley with farms. → 谷 (tani) or 盆地 (bonchi).
Keikoku must be narrow and steep-sided.
Confusing 'keikoku' (gorge) with 'keikoku' (warning). → Check the kanji: 渓谷 vs 警告.
They sound the same but have different meanings and pitch accents.
Saying 'keikoku wo noboru' (climb the gorge). → 渓谷を歩く (walk) or 崖を登る (climb the cliff).
You hike in a gorge; you don't climb the 'gorge' itself like a wall.
Writing 'kei' without the water radical. → 渓 (with 氵).
Without the radical, it's not the correct character for a ravine.
Using 'keikoku' for a man-made canal. → 堀 (hori) or 運河 (unga).
Keikoku is strictly a natural landform.

Tips

Choosing the right word

Use 'keikoku' for travel brochures and 'tani' for simple directions.

Seasonal timing

The best time to visit a Japanese keikoku is November for red leaves or May for fresh green.

Particle choice

Use 'wo' when you are moving through the gorge (e.g., hiking or driving).

Suffixes

Look for the suffix '-kyo' (峡) in place names; it's another way to say gorge.

Weather awareness

In news reports, 'keikoku' is often mentioned during heavy rain due to flash flood risks.

Best shots

A 'tsuribashi' (suspension bridge) often provides the best photo spot for a keikoku.

Pitch accent

Remember the pitch rises: ke-I-KO-KU.

Radical clue

The water radical in 渓 is your best clue that this word involves a river.

Audio cues

If you hear 'keikoku' on a bus, get ready to look out the window for a view.

Visualizing

Always visualize the steep cliffs and the river together to remember 'keikoku'.

Memorize It

Mnemonic

Imagine a 'K'ey (Kei) unlocking a 'Co'ke 'Cu'p (Koku) that is deep and narrow like a gorge.

Visual Association

Visualize a giant 'V' shape cut into a mountain with a sparkling blue river at the bottom. The 'V' is the Koku, and the water is the Kei.

Word Web

Nature Mountain River Erosion Hiking Autumn Leaves Cliffs Scenery

Challenge

Try to find three famous 'keikoku' in Japan using Google Maps and describe them using the word 'keikoku' in a sentence.

Word Origin

The word is a Sino-Japanese compound (kango). 'Kei' (渓) comes from Middle Chinese /kʰei/, representing a mountain stream. 'Koku' (谷) comes from Middle Chinese /kuk/, representing a valley.

Original meaning: A valley with a mountain stream.

Sino-Japanese (Kango)

Cultural Context

Be careful when discussing 'keikoku' in the context of dam construction, as it can be a sensitive environmental and political topic in Japan.

In English, we often use 'gorge' for smaller ones and 'canyon' for massive ones like the Grand Canyon. Japanese uses 'keikoku' for almost all scenic ones, regardless of scale, unless it's truly massive.

Kurobe Gorge (Toyama) Takachiho Gorge (Miyazaki) Todoroki Ravine (Tokyo)

Practice in Real Life

Real-World Contexts

Tourism

渓谷ツアー
紅葉の渓谷
渓谷散策コース
渓谷の見える露天風呂

Geography

河川による渓谷の形成
険しい渓谷地帯
渓谷の地層
V字型の渓谷

Outdoor Activities

渓谷でキャンプ
渓谷の川下り
渓谷でのハイキング
渓谷釣り

Transportation

渓谷鉄道の旅
渓谷を渡る鉄橋
渓谷沿いの国道
渓谷バス停

Art/Literature

渓谷を描いた名画
渓谷を舞台にした小説
渓谷の詩
渓谷の静寂

Conversation Starters

"日本で一番美しい渓谷はどこだと思いますか？ (Where do you think is the most beautiful gorge in Japan?)"

"渓谷へハイキングに行ったことがありますか？ (Have you ever been hiking in a gorge?)"

"紅葉の季節に渓谷へ行くのは好きですか？ (Do you like going to gorges during the autumn leaf season?)"

"渓谷でボートに乗ったことはありますか？ (Have you ever taken a boat in a gorge?)"

"渓谷の近くにある温泉に泊まりたいですか？ (Would you like to stay at an onsen near a gorge?)"

Journal Prompts

もし自分が渓谷を旅するなら、どんな準備をしますか？ (If you were to travel through a gorge, what preparations would you make?)

都会の喧騒と渓谷の静寂、どちらが自分に合っていると思いますか？ (Which suits you better: the hustle and bustle of the city or the silence of a gorge?)

これまでに見た中で最も印象的だった渓谷について書いてください。 (Write about the most impressive gorge you have ever seen.)

渓谷の自然を守るために、人間ができることは何だと思いますか？ (What do you think humans can do to protect the nature of gorges?)

渓谷を舞台にした物語を短いプロットで考えてみてください。 (Try to come up with a short plot for a story set in a gorge.)

Frequently Asked Questions

10 questions