Located 9 miles north of Elbow Mountain and 37 miles southeast of Bethel, Kilbuck-Kuskokwim Mountains; between the Kwethluk and Akulikutak Rivers, 29 miles southeast of Bethel.
So named because the mountain has three definite benches. Descriptive name shown on a 1902 manuscript map by U.S. Revenue-Cutter Service (USRCS).