Description
5 mi NNW of Mount Sumdum, 15 mi N of Sumdum, 40 mi. SE of Juneau. 1.5 miles long.
History
Descriptive name given in 1965 by U.S. Geological Survey (USGS) andU.S. Forest Service (USFS)because ice breaks from a nearby glacier and falls over a cliff into a small basin between the lake and the cliff.