Mount Yunomaru, Lava dome summit in Ueda, Japan
Mount Yunomaru rises to 2,101 meters and spans across the borders of Nagano and Gunma Prefectures. Its steep slopes are covered with Japanese azalea plants that characterize the landscape.
Mount Yunomaru is one of the peaks of the Eboshi Volcano Group, a cluster of lava domes and stratovolcanoes in the border area of Nagano and Gunma prefectures. The group's activity built the two summits, the southern at 2,101 m and the northern at 2,099 m. The mountain's lower slopes now hold the Yunomaru and Kazawa ski areas.
Near the summit, at Tsutsujidaira, lies the Yunomaru Rengetsutsuji azalea community, designated a national Natural Monument of Japan. In season the flowers turn the mountainside vermilion, and the slopes below hold the Yunomaru and Kazawa ski areas.
Several hiking trails of varying difficulty lead to the summit with parking areas and information boards at the main access points. Check weather conditions before your visit and prepare for steep sections on the route.
The slopes maintain a rare community of Japanese azalea plants that resemble a natural botanical garden when in bloom. This plant diversity makes the area special for nature and botany enthusiasts.
The community of curious travelers
AroundUs brings together thousands of curated places, local tips, and hidden gems, enriched daily by 93,133 contributors worldwide.
