in Rampart Mts., flows E and S to Bear Creek 2 mi. N of that stream's junction with Yukon River, 34 mi. NE of Tanana, Kokrines-Hodzana High.
Named in 1956 by Orth, for John Larsen, prospector, who once lived near the mouth of Bear Creek.
Bear Creek, Canyon Creek, Crash Creek, Larsen Creek, Larsen Creek, Sam Creek, Stevens Creek, Texas Creek, Twilight Creek,
Valleys: