Fish Lake Reservoir, sometimes called Fish Lake Flowage, is a 3,526-acre (14.27 km²) impoundment of the Beaver River, part of the Cloquet and Saint Louis River system, located 20 miles northwest of the city of Duluth, Minnesota.

This article does not cite any sources. (November 2017)

Fish Lake Reservoir
Fish Lake Flowage
Fish Lake Reservoir Show map of Minnesota Fish Lake Reservoir Show map of the United States
Location	Saint Louis County, Minnesota
Coordinates
Type	artificial
Primary inflows	Beaver River
Primary outflows	Beaver River
Basin countries	United States
Surface area	3,526 acres (1,427 ha)

Fish Lake Reservoir, known locally as simply Fish Lake, spans the townships of Fredenberg Township, Canosia Township, and Grand Lake Township, in southern Saint Louis County, Minnesota.

Fish Lake Reservoir is a 3,071 acre lake located northwest of Duluth, with 75% (2,303 acres) littoral area and a maximum depth of 36 feet. Minnesota Power owns and operates a public access on the north side of the lake located at the end of Township Road 285. The Minnesota DNR also operates a public access located on the far west section of the lake, near Saint Louis County Road 15.