The Asahi Range is located on the border between Niigata Prefecture and Yamagata Prefecture and constitutes the most northern segment of the Echigo Range. The main peak, Ōasahi Dake, rises to 1,870 m above sea level and is ranked among the 100 Famous Japanese Mountains. The range is a massif stretching 60 km from north to south and 30 km from east to west. It is one of the snowiest places in Japan and snowpacks stay in summer. The mountains feature deep canyons with alpine plants on their ridges and pristine Japanese beech forests on their lower slopes.