Marsh Cirque

Marsh Cirque (77°30′S 161°27′E) is a cirque in the southern part of Mount Hercules, Olympus Range, Antarctica. The cirque is 1 nautical mile (2 km) wide and in part occupied by a glacier. It was named by the Advisory Committee on Antarctic Names in 2004 after geologist Bruce D. Marsh, of the Department of Earth and Planetary Sciences, Johns Hopkins University, Baltimore, Maryland. Marsh investigated basement sill at McMurdo Dry Valleys sites in seven field seasons, 1995–2005, for the United States Antarctic Program.