58 ° 34' 9.001" N,
154 ° 49' 0.998" W
Lake and Peninsula
220 ft (67.06 m)
heads at central terminus of Serpent Tongue Glacier, flows NW to Savonoski River, on Alaska Peninsula, in Katmai National Monument, 21 mi. NE of Mount Katmai, Aleutian Range
HistorySo named in 1923 by R. H. Sargent's U.S. Geological Survey (USGS) party "because six rainbows were seen there."