Chang Peak rises to on the northeastern slope of Mount Waesche. Doumani Peak rises to on the southern slopes of Mount Sidley. Lavris Peak rises to in the northeastern portion of Mount Hartigan. Le Vaux Peak () is a small peak on the east side of the crater rim of Mount Cumming. Mapped by United States Geological Survey (USGS) from surveys and U.S. Navy aerial photographs, 1958-60. Named by Advisory Committee on Antarctic Names (US-ACAN) for Howard A. Le Vaux, auroral physicist at Byrd Station, 1959, and a member of the Marie Byrd Land Traverse Party, 1959-60. Mintz Peak rises to on the southeast corner of Mount Hartigan. Tusing Peak rises to from the central portion of Mount Hartigan. Whitney Peak is a conspicuous peak rising to , located northwest of Mount Hampton, from which it is separated by a distinctive ice-covered saddle. Woolam Peak is a small peak on the southern part of the crater rim of Mount Cumming. The Feyerharm Knoll is an ice-covered knoll protruding to in a terrain on the lower northeastern slope of Mount Sidley. The Weiss Amphitheater is an amphitheater-like caldera, wide and breached at the southern side, occupying the south-central part of Mount Sidley. In November 2013, Lough et al. reported deep long period volcanic earthquakes centered at depths of 30-40 km approximately 55 km S of Mount Sidley that were interpreted as indications of present deep crustal magmatic activity beneath the Executive Committee Range. Ice penetrating radar results reported in this study indicated a sub-ice topographic feature, interpreted as a volcano, above the seismic swarms. The study also reported a mid-icecap (1400 m depth) ash layer about 8,000 years old that was interpreted as probably originating at nearby Mount Waesche.