The Susan River (Northeast Maidu: Pam Sewim, bush creek) is a northeastern California river of approximately 67 miles (108 km) length that drains from an arid plateau of volcanic highlands along the Great Basin Divide to intermittent Honey Lake. The river flows from eastern Lassen County from east of Lassen Volcanic National Park generally east past Susanville and emerging into a ranching valley to enter the north end of Honey Lake. Along with Fredonyer Pass, the Susan River is the northern boundary of the Sierra Nevada.
Click any point for details. Sections without stored geometry are drawn as straight put-in → take-out lines — actual courses follow the river.