It forms the center of a three-armed mass of which Brown Peninsula is one extension to the north; Minna Bluff is a second to the east; the third is Mount Morning to the west.

Dome-shaped mountain, 2,725 metres (8,940 ft) high, standing west-southwest of Mount Discovery and east of Koettlitz Glacier.

Named by US-ACAN in 1963 for Lieutenant Commander Louis L. Helms, United States Navy, officer in charge of the Squadron VX-6 winteringover detachment at McMurdo Station, 1961.

A broad glacier, 9 nautical miles (17 km; 10 mi) long, between Hurricane Ridge (Antarctica) and Mount Discovery.

A lake, 3 nautical miles (5.6 km; 3.5 mi) long, situated at the north end of Hurricane Ridge on the west margin of Discovery Glacier.