35 mi. N of Goodnews, Kilbuck-Kuskokwim Mts.
Named in 1914 by U.S. Coast and Geodetic Survey (USC&GS) for its surveying vessel Yukon; published in 1915 on Chart 9103.
Cone Mountain, Figure Four Mountain, Island Mountain, Mitlak Mountain, Nagotligageivik Mountain, North Yoke Mountain, Northeast Twin, South Yoke Mountain, Southwest Twin, Tatlignagpeke Mountain, Twin Mountain, Yoke Mountain, Yukon Hill,
Bessie Creek, Boulder Creek, Butte Creek, Canyon Creek, Danger Creek, December Creek, Domingo Creek, Dry Creek, Faro Creek, Fox Creek, Jacksmith Creek, Kowkow Creek, Magaktlek Creek, McLane Creek, Minnesota Creek, Red Lodge Creek, Taluyetlek Creek, Trail Creek,