Description
3 mi. S of Gibraltar Lake and 32 mi. SE of Illiamna, Aleutian Range. 1 mile long.
History
So named in 1923 by R. H. Sargent, U.S. Geological Survey (USGS), because of its emerald like appearance and published by K. F. Mather (in Brooks and others, 1925, pl. 3), U.S. Geological Survey (USGS).