Route Overview
Nishi-Azuma Sky Valley is a scenic mountain road connecting Yonezawa City in Yamagata Prefecture and Kitashiobara Village in Fukushima Prefecture. The total length is about 17.8 km, reaching over 1,400 meters in elevation. The road runs through Bandai-Asahi National Park and offers beautiful seasonal views—fresh greens in spring, deep green forests in summer, and colorful autumn leaves in fall.
Recommended Drive Section
- From Shirabu Onsen to Lake Hibara via the Sky Valley
- The road features steep climbs and many curves with changing scenery.
- On clear days, you can enjoy views of Mount Bandai and the Azuma mountain range.
Road Conditions & Safety Info
- Fully paved with two lanes and generally easy to drive.
- Many curves and steep slopes—please drive with caution.
- Fog is common, which can reduce visibility.
- Closed during winter (early November to mid-April).
Nearby Spots to Visit
- Shirabu Onsen: A historic hot spring town, perfect for a relaxing stop.
- Sky Valley Observation Deck: Offers panoramic views of Mt. Bandai and Lake Hibara.
- Lake Hibara Area: Great for camping, boating, and other outdoor activities.
Local Foods
- Yonezawa beef dishes are famous in Yonezawa City.
- Around Lake Hibara, you can enjoy mountain vegetable dishes and river fish.
- Soft-serve ice cream from mountain cafés is also a must-try.
Toll & Access Info
- Toll: Free
- Nearest ICs:
- Yonezawa-Hachimanbara IC (Tohoku-Chuo Expressway)
- Inawashiro-Bandai Kogen IC (Ban-Etsu Expressway)
Best Season & Weather
- Best time to visit: Late May to mid-October
- Peak autumn foliage: early to mid-October
- Even in summer, temperatures can be cool due to elevation. In fall, bring warm clothing.
Touring Plan Example
One-Day Trip (from Yonezawa)
Yonezawa → Shirabu Onsen → Nishi-Azuma Sky Valley → Lake Hibara → Inawashiro or return
(Approx. 5–6 hours total)