Aso Milk Road is a scenic road that runs along the outer rim of Mt. Aso in Kumamoto Prefecture.
The name “Milk Road” comes from the many farms and pastures nearby.
You can enjoy wide open grasslands, cows grazing, and beautiful views of the Aso mountains.
This road is also a useful connection between Aso City and Kumamoto City.
It is popular with both drivers and motorcycle riders.
Recommended Section
The best section is from Nijūno Tōge (Double Ridge Pass) to Shiroyama Viewpoint and Daikanbō.
You can drive along the highland with amazing views of the Aso caldera and outer mountains.
Daikanbō is the most famous viewpoint. On clear days, the view is incredible.
Road Conditions & Safety
Most of the road is paved and in good condition.
However, some areas have many curves and narrow lanes.
In the early morning or evening, fog can make it hard to see.
In winter (December to March), snow and ice may close the road.
Large trucks are rare, so it’s good for relaxed driving or touring.
Nearby Spots
Daikanbō: The top viewpoint of Aso with wide landscapes
Shiroyama Viewpoint: A quiet spot with views of Aso City
Roadside cafés and farm shops: Enjoy fresh milk, ice cream, and more
Local Foods
Try the local Akaushi beef bowl or the famous Aso milk soft-serve ice cream.
Many farm cafés serve creamy pudding and dairy sweets made from fresh Aso milk.
Fees & Access
Toll: Free
Access: About 1 to 1.5 hours by car from Kumamoto City
(Use Kumamoto IC or Ueki IC, then follow national roads to Aso)
Parking: Free parking is available at places like Daikanbō
Best Season & Weather
Spring (April–May): Fresh green grass and cool weather
Summer (July–September): Cooler than the city, great for escaping the heat
Autumn (October): Golden grass and clear skies, perfect for photos
※ In winter, roads may be closed due to snow or ice
Touring Plan Example (Half-day trip)
Kumamoto City → Milk Road → Shiroyama Viewpoint → Stop at Daikanbō for views and soft-serve → Lunch in Aso City → Return to Kumamoto (about 4–5 hours total)