Heads SW of Mount bupto, flows N and E to the Ipnavik River 60 mi upstream from its mouth, Brooks Range. 18 miles long.
Named in 1951 by I. L. Tailleur, U.S. Geological Survey (USGS), "for Mount Bupto."
Kavaksurak Mountain, Rim Butte,
Streams:Bupto Creek, Crassico Creek, Ekakevik Creek, Friendly Creek, Memorial Creek, Taffy Creek,