A bold rock cape marking the north extremity of otherwise icecovered Lofgren Peninsula, in the northeast part of Thurston Island.

Discovered on helicopter flights from the USS Burton Island and Glacier by personnel of United States Navy Bellingshausen Sea Expedition in February 1960.

An ice-covered island about 2 nautical miles (3.7 km; 2.3 mi) long, lying just within the north part of the mouth of Morgan Inlet.

A small but distinctive ice-covered elevation that rises midway along the south side of Lofgren Peninsula.

Named by Advisory Committee on Antarctic Names (US-ACAN) after Aviation Machinist's Mate William H. Mills, aircrewman in the Eastern Group of U.S. Navy (USN) Operation Highjump, which obtained aerial photographs of Thurston Island and adjacent coastal areas, 1946-47.