It was discovered by the British National Antarctic Expedition, 1901–04 (BrNAE), which named it "Brown Island" because of its color and its island-like character.

A strait on the McMurdo Ice Shelf that trends north–south between Brown Peninsula, Mount Discovery, and Minna Bluff on the west, and Black Island on the east.

The surface of the strait, especially the north part between Brown Peninsula and Black Island, is noteworthy for the presence of broad moraine belts that obscure much of the ice and suggest the name.

An ice-filled embayment between the base of the west side of Brown Peninsula and the low northwest foot of Mount Discovery.

The bight extends southwest-northeast for 6 nautical miles (11 km; 6.9 mi) from Hahn Island to Swyers Point.

An ice-free point on the west side of Brown Peninsula, Scott Coast, that marks the north extent of Bellafronto Bight.

A small ridge which forms a distinct western rim to the large crater-like depression high in the central part of Brown Peninsula.

The top of the ridge has been planed off by subsequent glaciation and the resultant surface exposes two basalt "pipes" (Nubian Formation) within the trachyte.

An ice-covered lake, 0.5 nautical miles (0.93 km; 0.58 mi) long, located just east of Rainbow Ridge in central Brown Peninsula.

Named by US-ACAN (1999) after Alan J. Eggers, Department of Geology, Victoria University of Wellington, who, in December 1975 as a member of the VUWAE, sampled the Scallop Hill Formation at the north end of Brown Peninsula.

Name applied by the NZ-APC following investigations by the New Zealand Geological Survey and Victoria University Expedition in the area, 1964-65.