Mount Kazakoshi, Mountain summit in Agematsu, Nagano Prefecture, Japan

Mount Kazakoshi is a 1698-meter peak in the Japanese Alps near Agematsu. Dense forests cover the slopes, and several well-marked trails offer different routes to reach the summit from the base.

Until the 1970s, the southwestern slopes were mown for fodder and burned each spring; both practices faded as the number of Kiso horses declined. The open grassland that resulted gave the mountain its place among the Kiso Hakkei, the eight scenic views of Kiso, as "Kazakoshi no seiran", wind sweeping over the grass.

The name Kazakoshi refers to the wind sweeping over the mountain's slopes, a scene counted among the Kiso Eight Views as "Kazakoshi no Seiran" (clear wind at Kazakoshi). Until the 1970s, spring burning and grass cutting for horse fodder took place on the southwest slope, practices that faded as Kiso horses declined. Local hikers group the peak with Mount Nagiso and Mount Itose as the "Kiso Three Mountains."

Two trails lead up: the Yoshino course from the Takatoriya trailhead on the west side, and the Namenokawa course, which branches off the Agematsu A course of the Kiso-Komagatake trail and crosses the Namenokawa. That stream carries a lot of water and can be hard to ford, so few hikers use it.

Mount Kazakoshi lies on the Kiso Mountains' western edge fault zone, where part of the western slope once collapsed and left a group of rock towers called kerbats. The summit itself is wooded with no view; the lookout is about 140 m southeast of the triangulation point.