Aso Local Quiz Practice: Questions and Explanations

Correct answerThe Aso Five Peaks

Takadake, Nakadake, Nekodake, Eboshidake, and Kishimadake are together called the Aso Five Peaks, the central volcanic cones rising inside the caldera ringed by its outer rim. A scenic driving route follows the outer rim itself, letting visitors trace the peaks' skyline from a distance.

Source:阿蘇五岳 – 阿蘇を世界遺産に

Correct answerKusasenri-ga-hama

Kusasenri-ga-hama is a grassland spreading across a former crater on Eboshidake's mid-slope, famous for grazing horses that wander freely across it, one of Aso's most photographed sights. A rain-fed pond sits at its center, and the area doubles as a hub for walking trails and horseback riding experiences.

Source:米塚及び草千里ヶ浜 – 阿蘇市ホームページ

Correct answerAso Kumamoto Airport

Kumamoto Airport goes by the nickname "Aso Kumamoto Airport," named for the volcano that symbolizes the prefecture, and its logo and signage echo Aso's silhouette. As one of Kyushu's key regional airports, it serves as a gateway for visitors heading toward both the volcano and Kumamoto City.

Source:熊本国際空港株式会社

Correct answerAkaushi (red beef cattle)

Akaushi rank as Japan's second-most-common wagyu breed by headcount, behind only the country's most widely raised breed. They are known for grazing freely across Aso's grasslands, and their leaner, less fatty meat has found new appeal among health-conscious diners in recent years.

Source:阿蘇のあか牛 テロワール旅

Correct answerBecause its cut surface is cherry-blossom pink

Horse meat oxidizes on contact with air and deepens into a vivid cherry-blossom pink, which is why it is called "sakura-niku." In Kumamoto and Aso, eating raw horse meat as basashi remains a deeply rooted local custom, typically served with grated ginger and a slightly sweet soy-based dipping sauce.

Source:馬肉が桜肉（さくらにく）と呼ばれるようになった理由は？

Correct answerMizuki-meguri

Aso Shrine's approach shopping street has spring-water fountains called "mizuki" scattered along it, and strolling from one to the next, known as "mizuki-meguri," is a favorite activity for visitors. The water is rainfall that seeped through Aso's mountains and re-emerged as a spring, free for anyone to drink.

Source:「阿蘇神社」の門前町で水基巡り＆絶品阿蘇グルメを食べ歩き！

Correct answerBundles of burning miscanthus grass

In the Hiburi Shinji ritual, participants light bundles of miscanthus grass and swing them vigorously through the night, casting layered rings of fire into the darkness. It is one of the rites held each spring at Aso Shrine, an ancient shrine with a history said to span roughly 2,000 years, as a prayer for a bountiful harvest.

Source:【3月23日】阿蘇神社「火振り神事」

Correct answerEarly spring (roughly February to April)

Noyaki in Aso is carried out in early spring, roughly February through April, while the grassland lies dormant, keeping trees from encroaching and preserving the open landscape. Beforehand, workers must prepare firebreaks, a task shared between local grazing cooperatives and volunteers who travel in from cities to help.

Source:2026年春 阿蘇エリア『野焼き』の実施予定

Correct answerShirakawa Suigen

Shirakawa Suigen, a spring in Minami-Aso Village listed among the Ministry of the Environment's 100 Remarkable Waters, discharges roughly 60 tons of water per minute at a nearly constant rate all year. That steady temperature and volume have long made it a source for drinking water and irrigation in the surrounding area.

Source:白川水源 [名水百選] 名水のある風景

Correct answerTrue

Kumamoto Prefecture and the seven Aso-area municipalities have pursued a World Cultural Heritage listing for "Aso" for many years. The case rests on the grassland's agricultural landscape itself, shaped by centuries of coexistence between volcanic activity and human land use, backed by legal protection measures under cultural properties law.

Source:世界遺産の登録を目指して – 阿蘇市ホームページ

Correct answerJuly 2023

The Minami-Aso Railway Takamori Line was knocked out of service by the Kumamoto earthquake, suffering serious damage to bridges and tunnels at several points, and took 7 years and 3 months to fully recover. It resumed full operation on July 15, 2023, reviving its role as a hub for sightseeing in the caldera.

Source:南阿蘇鉄道 ダイヤ改正・全線運転再開（2023年7月15日）

Correct answerMid to late March

Aso takana is harvested by hand from mid to late March, when its slender bolted stalks are ready, workers snapping off each stalk one by one without machinery. This careful hand-picking is what preserves the crisp texture and distinctive flavor that define Aso takana pickles.

Source:阿蘇たかな漬とは | 阿蘇たかな漬協同組合

Correct answerGold Award at a processed-food contest

The "Aso Monogatari" ketchup, made only from fully ripe Aso-grown tomatoes, is an award-winning specialty product that won a Gold Award at a processed agricultural-food contest. Its flavor, built on the tomatoes' natural sweetness with minimal additives, has earned it a place on shelves at markets such as Michi-no-Eki Aso.

Source:農産物加工食品コンクール”金賞”！阿蘇ものがたりのとまとケチャップ

Correct answerJapanese Brown

Akaushi's official breed name is Japanese Brown, formally registered as a wagyu breed in 1944. It is closely tied to the region, commonly grazed across Aso's grasslands, and its lean, low-fat meat has won it a following among health-conscious consumers as well as traditionalists.

Source:広報あそ 特集 大解剖！阿蘇のあか牛

Correct answerHot water sprang up while an irrigation well was being drilled

Uchinomaki Onsen traces its start to the Meiji era, when hot water unexpectedly sprang up while a well was being drilled for irrigation. Since then, numerous individual sources have emerged across the district, and communal bathhouses called "machiyu" have kept the hot springs woven into everyday local life.

Source:阿蘇内牧温泉 - Wikipedia

Correct answer4

At Aso Shrine's Onda Festival, the enshrined gods are divided among four portable shrines that tour the green rice fields to inspect how the crop is growing. The rite is held each summer at a shrine said to carry roughly 2,000 years of history.

Source:御田祭 – 阿蘇神社

Correct answerTazukuri Festival

The Hiburi Shinji fire ritual is one scene within the larger Tazukuri Festival, held during the period of the Rabbit Rite. The Tazukuri Festival prays to the gods for the start of the rice-growing season, and Hiburi Shinji serves as its fiery closing spectacle each night, drawing large crowds of onlookers.

Source:田作祭 – 阿蘇神社

Correct answerGrazing-land cooperatives (bokuya kumiai)

Noyaki and firebreak-cutting are carried out mainly by local grazing-land cooperatives, though a growing number of them struggle to keep up because of aging membership and labor shortages. Volunteers from urban areas now share the heavy labor, from cutting firebreaks to setting the fires, working alongside these cooperatives to preserve the grassland landscape.

Source:野焼き・輪地切り支援（野焼き支援ボランティア）

Correct answerDecember 2023

Aso Shrine's gate tower, one of "Japan's three great gate towers," suffered major damage in the Kumamoto earthquake, and only after many years of large-scale restoration work did it finally reach a completion ceremony on December 7, 2023. The event marked the long-awaited return of a landmark central to the region's chief shrine.

Source:全壊の阿蘇神社楼門が復旧 地震から7年半、完工式典

Correct answerLarge morning-evening temperature swings and radiative cooling

Aso's sea of clouds tends to appear when the basin-shaped caldera terrain combines with sharp morning-evening temperature swings and radiative cooling. From viewpoints on the outer rim such as Daikanbo, visitors can watch the Aso Five Peaks seem to float above a fantastical sea of drifting cloud.

Source:阿蘇で雲海を見るための最適な気象条件とは？

Correct answerThe Mt. Aso Volcanic Disaster Prevention Liaison Office

In 2008, the Japan Meteorological Agency opened the Mt. Aso Volcanic Disaster Prevention Liaison Office inside Aso City Hall, where it gathers volcanic observation data and relays information to local government. Housing both agencies under one roof makes for a crucial disaster-prevention arrangement.

Source:阿蘇山火山防災連絡事務所

Correct answerVolcanic Alert Level

The Japan Meteorological Agency sets a Volcanic Alert Level for Mt. Aso ranging from 1 (be aware it is an active volcano) to 5 (evacuate), adjusting it up or down as observation data changes. Access restrictions to the crater area and road closures are tied directly to shifts in this alert level.

Source:熊本地方気象台 阿蘇山の噴火警戒レベル

Correct answerSpring controlled burning (noyaki) marks the start of the agricultural cycle

Aso's grassland conservation rests on an internationally recognized agricultural system built from a full year of human effort: controlled burning, grazing, and hay-cutting, each carried out in its season. Spring's controlled burning carries particular weight within that cycle, marking the starting point of the year's agricultural rhythm. Cutting hay in summer with grazing in winter, composting in summer, and offshore seaweed farming are all incorrect.

Source:世界農業遺産（GIAHS）に認定された阿蘇の草原の維持と持続的農業

Correct answerAbout 25,000

The 2020 national census recorded Aso City's population at 24,930. The city was formed in 2005 through the merger of Aso, Ichinomiya, and Namino, and because its settlements are scattered both inside and outside the caldera, its population density remains among the lowest in Kumamoto Prefecture.

Source:人口 – 阿蘇市ホームページ

Correct answer1934

Aso-Kuju National Park was designated on December 4, 1934, alongside Akan, Nikko, Chubu-Sangaku, and Daisetsuzan National Parks. It was originally named simply "Aso National Park," and only took its current name, reflecting the Kuju mountain range within its bounds, after a 1986 renaming.

Source:阿蘇くじゅう国立公園阿蘇くじゅう国立公園 - Wikipedia

Correct answerNekodake

Nekodake is thought to be the oldest of the Aso Five Peaks, a mountain body that predates the caldera's own formation. Centuries of erosion have worn away its original crater, carving a jagged, sawtooth ridge that has earned the peak the nickname "Aso's Matterhorn" for its dramatically rugged profile.

Source:阿蘇五岳と外輪山 火山の力を体感する｜阿蘇の登山ガイド #01

Correct answerIts scale as a caldera containing towns, railways, and a national highway inside it

The Aso caldera is called one of the world's largest for containing an entire city center, villages, a railway line, and even a national highway within its rim. That people actually live and commute inside a caldera, going about ordinary daily life, is itself the landform's most remarkable trait.

Source:阿蘇カルデラ - Wikipedia

Correct answerTateno in Minami-Aso Village

The Route 57 Northern Recovery Route is a bypass built to skirt the massive landslide that struck Tateno in Minami-Aso Village during the Kumamoto earthquake, connecting Akamizu in Aso City with Ozu Town. Because repairing the original road was not practical, the recovery effort instead carved an entirely new route through the terrain.

Source:国道57号北側復旧ルート

Correct answerThe Engishiki

Aso takana's roots run deep: it is said to appear as "suzuna (takana)" in the Engishiki, a legal code compiled in 928, suggesting it was already being cultivated and used in the Heian period. Passed down for over a thousand years as a vegetable suited to Aso's climate, it stands as the root of the region's local food culture.

Source:阿蘇高菜とは - 阿蘇高菜漬 森物産ホームページ

Correct answerOver 95%

Kumamoto Prefecture accounts for over 95% of all akaushi (Japanese Brown cattle) raised in Japan, meaning almost the entire breed is effectively raised within Kumamoto, Aso included. Rarely produced anywhere else, akaushi has become a brand inseparable from the open grazing grounds of Aso's grasslands.

Source:阿蘇のあか牛 テロワール旅

Correct answerThe approach runs sideways rather than straight toward the shrine's front

Aso Shrine has an approach that runs sideways relative to its main hall's front, a layout considered rare nationwide. As an ancient shrine with a history said to span roughly 2,000 years, and the head shrine of some 500 Aso shrines across Japan, its unusual precinct layout reflects that exceptional status.

Source:阿蘇神社参道 | 観光スポット | 【公式】熊本県観光サイト もっと

Correct answerRestaurants, liquor stores, and souvenir shops

Aso Shrine's approach shopping street is lined with restaurants, liquor stores, and souvenir shops that draw many visitors. The same street holds spring-water fountains called "mizuki," so a stroll past the shops can double as a sip of clear mountain water on the way to or from the shrine, making it a natural gateway into an Aso visit.

Source:阿蘇に行くなら門前町商店街に寄ろう！

Correct answerOtaue Shinko-shiki

The Onda Festival's formal ritual name is "Otaue Shinko-shiki," during which the gods enshrined at Aso Shrine ride portable shrines through the green rice paddies, inspecting the crop's growth and praying for a bountiful harvest. Notably, the procession tours fields already lush and green, not paddies before planting.

Source:御田植神幸式 / 御田祭 @阿蘇神社

Correct answerWachikiri (firebreak-cutting)

Wachikiri is the work of pre-cutting grass to create firebreaks that will contain the spread of noyaki fires. Carried out from late autumn to early spring, this physically demanding and hazardous task increasingly relies on the help of support volunteers from urban areas alongside local grazing cooperatives.

Source:野焼き・輪地切り支援（野焼き支援ボランティア）

Correct answerThe Aso World Cultural Heritage Academic Committee

To examine "Aso"'s value as a World Cultural Heritage candidate, an expert panel called the Aso World Cultural Heritage Academic Committee was established to clarify its academic standing as an agricultural landscape shaped by coexistence with an active volcano. It underpins the long-running registration effort with specialist expertise.

Source:阿蘇を世界文化遺産に（阿蘇世界文化遺産登録推進オフィシャルサイト）

Correct answerMid-October to early December

Aso's sea of clouds is most likely to form from mid-October to early December, when the gap between morning and evening temperatures widens the most. Radiative cooling traps cold air at the bottom of the basin, moisture-laden air condenses above it, and the resulting cloud layer can be viewed from lookouts on the outer rim.

Source:阿蘇の雲海を必ず観れる方法と雲海発生条件

Correct answerEndangered species are concentrated there

Because Aso's grasslands have been sustained by continuous human activity, controlled burning, grazing, and hay-cutting, they have become one of Japan's foremost habitats for endangered species that have vanished elsewhere. That ongoing human management protects, rather than threatens, this rich mix of wildlife draws particular academic interest.

Source:広がる命 – 阿蘇地域世界農業遺産

Correct answerJR Hohi Main Line fully reopens → Route 57 Northern Recovery Route opens → Minami-Aso Railway fully reopens → Aso Shrine gate tower restoration completes

Aso's transportation recovery from the Kumamoto earthquake unfolded in this order: the JR Hohi Main Line's full reopening came first, followed by the Route 57 Northern Recovery Route's opening, then the Minami-Aso Railway's full reopening (July 2023), and finally Aso Shrine gate tower's restoration completion (December 2023). Some of these routes took more than seven years to fully recover.

Source:熊本地震被災の豊肥線再開 4年4カ月ぶり

Correct answerThe Route 57 Northern Recovery Route's length → The Minami-Aso Railway Takamori Line's operating distance → Milk Road's total length → The Aso caldera's circumference

The Route 57 Northern Recovery Route is shortest, followed by the Minami-Aso Railway Takamori Line's operating distance and Milk Road's total length in increasing order, with the Aso caldera's circumference the longest of the four.

Source:ミルクロード | 阿蘇ペディア

Correct answerHand-pick it stalk by stalk → Salt it the same day it's harvested → Pack it into a barrel → Let it cure for 3 to 5 days

Aso takana pickles come together through a set sequence: stalks are hand-picked one by one, salted the same day they are harvested, packed into a barrel, and left to cure for 3 to 5 days as a lightly-cured pickle. The speed from harvest to processing is what produces its distinctively crisp texture.

Source:阿蘇たかな漬とは | 阿蘇たかな漬協同組合