The Hachimantai Aspite Line is a scenic mountain road stretching about 27 km, connecting Hachimantai City in Iwate Prefecture with Kazuno City in Akita Prefecture.
Named after an “aspite” volcano (a gently sloping volcanic shape), the route winds along soft ridgelines, offering one of Japan’s top sky-high driving experiences.
At over 1,600 meters in elevation, the road offers a variety of stunning views depending on the season: snow corridors in spring, alpine flowers in summer, and vivid autumn foliage.
Recommended Driving Section
From Iwate side (Matsuo-Hachimantai Visitor Center) → Hachimantai Summit Rest House → Akita side (Onuma / Goshogake Onsen)
- The road features gentle curves and good visibility, perfect for a relaxed ride.
- Near the summit, you’ll get panoramic views of surrounding mountains and sometimes even Mt. Chokai in the distance.
- The famous snow corridor in late April to early May is a must-see.
Road Conditions & Safety Tips
- Fully paved, two-lane road in excellent condition.
- Temperatures are low even in summer due to the high altitude—bring layers.
- Be cautious of fog and sudden strong winds.
- Closed in winter (from early November to mid-April).
Recommended Stops
- Hachimantai Summit Rest House: Features a viewing deck, shop, and access to summit trails (15-minute walk).
- Kagami-numa (Dragon Eye): A magical, eye-shaped pond that appears during snowmelt (mid-May to early June).
- Goshogake Onsen: A famous hot spring resort on the Akita side, known for its strong sulfur smell and healing waters.
- Onuma Marshland: Peaceful highland wetland with wooden walking trails.
Local Food
- Iwate side: Try local mountain vegetable dishes and Iwate Shorthorn beef (grilled or in curry).
- Akita side: Known for kiritanpo hot pot, Inaniwa udon, and hot spring–boiled eggs.
Best Season & Climate
- Spring (mid-April to May): Enjoy the incredible snow corridor and lingering snow scenes.
- Summer (June to August): Cool temperatures and blooming alpine plants.
- Autumn (late September to mid-October): Colorful tunnels of fall leaves.
Tip: Due to the elevation, wear layers to adjust to changing weather.
Sample Touring Plan
One-day Trip (from Morioka)
Morioka → Matsuo-Hachimantai → Aspite Line → Hachimantai Summit → Down to Goshogake Onsen → Return to Morioka
(About 6–7 hours total)