Lake Brownworth is a meltwater lake immediately west of Wright Lower Glacier

Wright Lower Glacier

Wright Lower Glacier is a stagnant glacier occupying the mouth of Wright Valley and coalescing at its east side with Wilson Piedmont Glacier, in Victoria Land. Formerly called Wright Glacier, but that name was amended by the Victoria University of Wellington Antarctic Expedition to distinguish...

 at the east end of Wright Valley

Wright Valley

The Wright Valley is the central one of the three large Dry Valleys in the Transantarctic Mountains, located west of McMurdo Sound at approximately . Wright Valley contains the Onyx River, the largest river in Antarctica, Lake Brownworth, the origin of Onyx River, and Lake Vanda, which is fed by...

, 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...

. The lake was mapped by the United States Geological Survey

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,...

 (USGS) from surveys and air photos obtained in 1956–60. It was named by the Advisory Committee on Antarctic Names

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...

 for Frederick S. Brownworth Jr., USGS topographic engineer who worked several seasons in Antarctica. In 1970–71 he supervised aerial photography of the dry valleys of Victoria Land, including this lake.