Mt. Tengu

Mt. Tengu (天狗岳) is a main-class peak in the North Yatsugatake area, rising on the border of Chino City and Minamisaku District in Nagano Prefecture. The summit area is split east-west about 300m apart: West Tengu-dake 2,645.8m, East Tengu-dake 2,640m.
The lava plateau, moss-covered primeval forest, and ponds weave the quiet North Yatsugatake landscape — then, once you climb to the ridge, the scenery suddenly transforms into rocky ridge and scree mountain terrain. This “gap” is the appeal. It is popular as a step-up mountain for beginners to intermediate climbers.

The main trailheads are “Shibu-no-Yu” on the west (Oku-Tateshina Onsenkyo) and “Inago-yu” on the east (Matsubara-ko Kogen).
This page lays out routes to these two trailheads — convenient by public transport — with the latest schedules, along with representative course profiles, walking-time references, and safety information.

*Timetable last checked: June 6, 2026

How to access the trailheads

1. [Outbound] Chino Station → Shibu-no-Yu
2. [Outbound] Koumi Station → Inago Trailhead → Inago-yu
3. [Return] Shibu-no-Yu → Chino Station
4. [Return] Inago-yu → Inago Trailhead → Koumi Station

1. [Outbound] Chino Station → Shibu-no-Yu

From JR Chuo Main Line Chino Station West Exit Platform 1, take the Alpico Kotsu “Oku-Tateshina Shibu-no-Yu Line” to the terminus, Shibu-no-Yu.
Fare: one way ¥2,000 (revised 2025/8/2, continued into 2026 season)
Travel time: about 57 minutes
Operating period/days: Sat/Sun/holidays from May 2 – October 25, 2026; daily August 1 – August 30 (spring-summer-autumn schedule, no weekday service).

Bus TimetableChino Station → Shibu-no-Yu

Reference: [Chino City — Bus Shibu-no-Yu Line]

2. [Outbound] Koumi Station → Inago Trailhead → Inago-yu

※ Koumi Town local bus Matsubara-ko Line, 2026 Season Information: Service to the Inago-yu direction had been suspended since 2025/11/3 due to bridge-repair work, but resumed from April 25, 2026. Koumi Station ↔ Inago-yu fare ¥800 (adult). Verify the latest timetable on the Koumi Town Official site.

From JR Koumi Line Koumi Station, take the Koumi Town local bus “Matsubara-ko Line” to the Inago Trailhead Iriguchi (closest trailhead for the Midoriike direction) or to Inago-yu.
Operating period: daily April 25 – mid-December 2026 / from December the winter schedule suspends service into Inago-yu.

Fare: about ¥500
Travel time: about 35 minutes

Bus TimetableInago Trailhead / Inago-yu Bus Timetable

Reference: [Koumi Town Local Bus]

3. [Return] Shibu-no-Yu → Chino Station

From the Shibu-no-Yu bus stop, take the Oku-Tateshina Shibu-no-Yu Line bus and get off at the terminus, Chino Station.

Fare: one way ¥2,000 (revised 2025/8/2, continued into 2026 season)
Travel time: about 57 minutes
Operating period/days: Sat/Sun/holidays from May 2 – October 25, 2026; daily August 1 – August 30 (summer schedule)

Bus TimetableShibu-no-Yu → Chino Station Bus Timetable

Reference: [Chino City — Bus Shibu-no-Yu Line]

4. [Return] Inago-yu → Inago Trailhead → Koumi Station

From the Inago-yu or Inago Trailhead Iriguchi bus stop, take the Koumi Town local bus “Matsubara-ko Line” and get off at JR Koumi Station.

Operating period: daily April 25 – mid-December 2026 / from December the winter schedule suspends service into Inago-yu.

Fare: about ¥500
Travel time: about 35 minutes

Bus TimetableInago Trailhead / Inago-yu Bus Timetable

Reference: [Koumi Town Local Bus]