Description
Threemile Canyon is located on Bremner River, 0.5 mi. E of junction of Bremner River and South Fork Bremner River, 55 mi. NE of Katalla, Chugach Mts.
History
Local name reported in 1911 by F. H. Moffit (in Brooks and others, 1912, p. 99), U.S. Geological Survey (USGS).