The Quadrangle is an ice-covered area (essentially a glacial cirque) enclosed on three sides by rock ridges, but open to the south, lying between Mount Umbriel

Mount Umbriel

Mount Umbriel is a peak, 1,500 m, overlooking the head of Venus Glacier in the east part of Alexander Island. First mapped from air photos taken by the Ronne Antarctic Research Expedition 1947-48 by Searle of the Falkland Islands Dependencies Survey in 1960...

 and Venus Glacier

Venus Glacier

Venus Glacier is a glacier on the east coast of Alexander Island, 10 nautical miles long and 6 nautical miles wide at its mouth flowing east into George VI Sound between Keystone Cliffs and Triton Point. The coast in this vicinity was first seen from the air by Lincoln Ellsworth on November 23,...

 in eastern Alexander Island

Alexander Island

Alexander Island or Alexander I Island or Alexander I Land or Alexander Land is the largest island of Antarctica, with an area of lying in the Bellingshausen Sea west of the base of the Antarctic Peninsula, from which it is separated by Marguerite Bay and George VI Sound. Alexander Island lies off...

. Mapped by Directorate of Overseas Surveys from satellite imagery supplied by U.S. National Aeronautics and Space Administration in cooperation with U.S. Geological Survey. The feature was so named by United Kingdom Antarctic Place-Names Committee (UK-APC) in description of its shape.