, also written as 飯綱山 (Iizuna-yama), is a mountain located ten kilometers north-northwest of the heart of Nagano, Nagano Prefecture, Japan. The mountain straddles the city of Nagano and Iizuna town in Kamiminochi District, Nagano. Together with 1875.0 m, 1748 m, and others, it forms the Iizuna range. It has an elevation of 1,917 metres. Mount Iizuna is located with Myōkō-Togakushi Renzan National Park, and is one of the "Five Mountains of Northern Shinshu" (北信五岳) that also includes Mount Myōkō, Mount Kurohime, Mount Togakushi, and Mount Madarao. The mountain is one of the 200 most famous mountains in Japan (日本二百名山 Nihon 200 meizan), and one of the 100 most famous mountains in Nagano (信州百名山). This mountain is a sacred site for mountain-based religious sects such as Shugendo, and said to be the home of a tengu named Saburō. According to legend, there was once a strange, edible sand somewhere on the mountain, which the tengu would distribute in times of poor harvest. At the entrances of the hiking trails, there are several torii and komainu, the South Trail includes 13 stone Buddhas, and there is a shrine located near the summit. Leisure activities Hiking The mountain has popular hiking trails, which can be hiked in all seasons (with appropriate gear in winter), leading to the summit in approximately 2-2.5 hours depending on fitness level. The begins at the , which is approximately 14 km from Nagano Station and can be reached by car or public bus run by Alpico Kōtsū. Parking is available. The bus stop is in front of Nagano Country Club. From the Izuna Trailhead (1,126m), the trail rises to 1,917m over approximately 4 km of hiking. There are no chains or ladders on the trail, and little technical skill is required. Another popular trail, leaves from the village of Togakushi, at an elevation of 1,225m. It meets the main South Trail at an elevation of 1,840 m at the . The summit provides 360° degree views, including panoramic views of Nagano City, Mount Togakushi, Mount Takatsuma, one of the 100 Famous Japanese Mountains, and Mount Kurohime throughout year; and especially in winter, the Hida Mountains, Yatsugatake Mountains, and Mount Fuji can be seen. Note, however, that specialty gear, including crampons, are required in winter. From the summit, it is also possible to ascend from or descend to Togakushi via Mount Menō (瑪瑙山) (1748m) and Togakushi Ski Field.