is located on the borders of Gifu, Ishikawa and Toyama prefectures in Japan. It is in the northern area of Hakusan National Park and is part of the Ryà Âhaku Mountains.
Mount Oizuru, at , is the tallest mountain in the northern part of the Ryà Âhaku Mountains. Just north of the mountain is Mount à Âgasa (大笠山 à Âgasa-yama), which is slightly shorter at . There are three triangulation stations on the mountain's thin peak.
Taichà  is said to have first scaled the mountain in the early eighth century.