Mt. Rengedake is a 2,799m peak in the Ushiro-Tateyama Range of the Northern Alps. Facing Mt. Harinoki across Harinoki Pass, the summit area is famous for its large colonies of Komakusa (dicentra). It is one of Japan’s 300 Famous Mountains.
The trailhead at Ogizawa can be reached by route bus from JR Shinano-Omachi Station, express bus from Nagano Station, or overnight bus from Tokyo (Mainichi Alpen-go). Ogizawa is also the Nagano-side gateway to the Tateyama Kurobe Alpine Route.
The trailhead is Ogizawa. Buses run from JR Shinano-Omachi Station or JR Nagano Station. Overnight buses from Tokyo are also available (Mainichi Alpen-go). The same trailhead is also used for Harinokidake.
Access to the Trailhead
Map
1. Going: Shinano-Omachi Sta. → Ogizawa
Take the Alpico Kotsu “Ogizawa Line” bus from JR Shinano-Omachi Station to Ogizawa Station.
Operating period: Apr 15 – Nov 30, 2025
Fare: 1,650 yen | Travel time: Approx. 40–45 min
Bus Timetable: Shinano-Omachi Sta. → Ogizawa
| Shinano-Omachi Sta. | Ogizawa Sta. |
|---|---|
| *6:15 | *6:55 |
| 7:10 | 7:50 |
| 8:00 | 8:40 |
| 9:00 | 9:40 |
| 10:30 | 11:10 |
| 11:35 | 12:15 |
| 12:20 | 13:00 |
| 13:20 | 14:00 |
| 14:20 | 15:00 |
| 15:10 | 15:50 |
| 16:25 | 17:05 |
| *17:10 | *17:50 |
Reference: Alpico Kotsu – Ogizawa Line
2. Going: Nagano Sta. → Ogizawa
Take the Express Bus (Nagano – Omachi / Ogizawa) from JR Nagano Station East Exit directly to Ogizawa.
Operating period: Apr 15 – Nov 30, 2025
Fare: 4,300 yen | Travel time: Approx. 1 hr 35 min – 2 hr 15 min
Bus Timetable: Nagano Sta. → Ogizawa
| Nagano Sta. | Ogizawa Sta. |
|---|---|
| 8:15 | 10:00 |
| 10:30 | 12:15 |
| 14:05 | 15:50 |
Reference: Alpico Kotsu – Express Bus Nagano–Omachi/Ogizawa
3. Going: Tokyo (Takebashi/Shinjuku) → Ogizawa (Mainichi Alpen-go Night Bus)
Take the Mainichi Alpen-go night bus (operated by Maitabi, advance reservation required) from Takebashi or Shinjuku to Ogizawa. Schedules vary within the season — check the official page for the latest calendar.
Reference: Mainichi Alpen-go (Maitabi)
4. Return: Ogizawa → Shinano-Omachi Sta.
Take the Alpico Kotsu “Ogizawa Line” bus from Ogizawa Station to JR Shinano-Omachi Station.
Travel time: Approx. 35–45 min
Bus Timetable: Ogizawa → Shinano-Omachi Sta.
| Ogizawa Sta. | Shinano-Omachi Sta. |
|---|---|
| *7:05 | *7:40 |
| 7:55 | 8:30 |
| 8:55 | 9:30 |
| 9:55 | 10:30 |
| 11:30 | 12:05 |
| 12:30 | 13:05 |
| 13:30 | 14:05 |
| 14:05 | 14:40 |
| **14:35 | **15:10 |
| 15:05 | 15:40 |
| 16:05 | 16:40 |
| 17:05 | 17:40 |
| 17:55 | 18:30 |
Reference: Alpico Kotsu – Ogizawa Line
5. Return: Ogizawa → Nagano Sta.
Take the Express Bus from Ogizawa directly to JR Nagano Station East Exit.
Bus Timetable: Ogizawa → Nagano Sta.
| Ogizawa Sta. | Nagano Sta. |
|---|---|
| 12:00 | 13:45 |
| 14:40 | 16:25 |
| 17:00 | 18:45 |
Reference: Alpico Kotsu – Express Bus Nagano–Omachi/Ogizawa
6. Return: Ogizawa → Shinjuku (Mainichi Alpen-go)
Take the Mainichi Alpen-go bus (advance reservation required) from Ogizawa to Shinjuku/Tokyo. Schedules vary by date — check the official page for details.
Reference: Mainichi Alpen-go (Maitabi)
