They were named by the United States Advisory Committee on Antarctic Names (US-ACAN) for William E. Long, a geologist with the Horlick Mountains Traverse, 1958–59, and also a member of the Ohio State University expedition to the Horlick Mountains in 1960–61 and 1961–62.

Features include McCarthy Valley, Knack Point, Todd Ridge, Peters Butte and Victor Cliff.

Named by US-ACAN for James E. McCarthy, meteorological electronics technician at Byrd Station in 1960.

A point at the termination of a flat-topped spur which marks the north end of Long Hills.

[9] This article incorporates public domain material from websites or documents of the United States Geological Survey.