Mount Blackwelder is a sharp, mainly ice-free peak

Mountain

Image:Himalaya_annotated.jpg|thumb|right|The Himalayan mountain range with Mount Everestrect 58 14 160 49 Chomo Lonzorect 200 28 335 52 Makalurect 378 24 566 45 Mount Everestrect 188 581 920 656 Tibetan Plateaurect 250 406 340 427 Rong River...

 in north Wilkniss Mountains

Wilkniss Mountains

Wilkniss Mountains is a prominent group of conical mountains, 10 miles long running north-south, located 9 miles east-southeast of Mount Feather, Quartermain Mountains, in Victoria Land, Antarctica. The mountains are 3 miles wide in the north portion where Mount Blackwelder and Pivot Peak ...

, Victoria Land

Victoria Land

Victoria Land is a region of Antarctica bounded on the east by the Ross Ice Shelf and the Ross Sea and on the west by Oates Land and Wilkes Land. It was discovered by Captain James Clark Ross in January 1841 and named after the UK's Queen Victoria...

, rising to 2,340 m west of Vernier Valley

Vernier Valley

Vernier Valley is an ice-free valley on the east side of Mount Blackwelder in the northeast part of Wilkniss Mountains, Victoria Land. The name is one of a group in the area associated with surveying applied in 1993 by New Zealand Geographic Board ; vernier being a graduated scale used on...

 and 10 km (6 mi) north of Pivot Peak

Pivot Peak

Pivot Peak is a prominent conical peak, 2,470 m, distinguished by a large northeast cirque and as the highest point in Wilkniss Mountains, Victoria Land. The New Zealand Northern Survey Party of the Commonwealth Trans-Antarctic Expedition established a survey station on its summit on January 21,...

.

Mapped by USGS

United States Geological Survey

The United States Geological Survey is a scientific agency of the United States government. The scientists of the USGS study the landscape of the United States, its natural resources, and the natural hazards that threaten it. The organization has four major science disciplines, concerning biology,...

 from surveys and U.S. Navy aerial photographs, 1947-59. Named by US-ACAN

Advisory Committee on Antarctic Names

The Advisory Committee on Antarctic Names is an advisory committee of the United States Board on Geographic Names responsible for recommending names for features in Antarctica...

 in 1984 after Lieutenant Commander Billy G. Blackwelder, U.S. Navy, Senior Helicopter Pilot, Antarctic Development Squadron Six (VXE-6), Operation Deepfreeze, 1971–72 and 1975-77.