Hontani River Valley is very popular Koyo Spot. From the later October to early November, many leaves will have a great Autumn leaves.
Hontanigawa Valley (本谷川渓谷) is one of the nature spot in Masutomi, Yamanashi prefecture. The water is chosen as 100 best Heisei Water. There are many beautiful scenery arong the river. Especially, Koyo, the Autumn leaves are so beautiful.
Tourist Info.
There is parking. No restroom.
There is strolling pass along the river.
Access
0. at Nirasaki Station.
1. use local bus to Masutomi Onsen.
2. walk
1 hr.
New Wave Samurai Movie. 
映画好き集まれ！ 
Hontani River Valley is very popular Koyo Spot. From the later October to early November, many leaves will have a great Autumn leaves.