Dewey Lake

Details

DNR lake ID

69091200

County

St. Louis

Surface area

201 acres

Maximum depth

40 feet

Shallow water (littoral) area

76 acres, 38% of the lake

Shoreline

4.0 miles

Average water clarity

12.5 feet (Secchi disk, 1 readings)

Nearest town (DNR)

Side Lake

Latest DNR fish survey

July 2007, re-survey

Surveys on record

3, since 1982

Game fish caught in the 2007 survey

bluegill 138, largemouth bass 47, northern pike 45, yellow perch 33, black crappie 21, pumpkinseed 13, rock bass 7, walleye 2

Fish species recorded

black crappie, bluegill, largemouth bass, northern pike, pumpkinseed, rock bass, walleye, yellow perch, and 10 other species

Dewey Lake Public Water Access Site

trailer launch, natural ramp, run by DNR Division of Parks and Trails

Fish consumption

Follow the northeast guidelines; fish from this lake have not been tested

Size

100 to 499 acres

Deepest point

30 to 59 feet

Public access

Yes

Sources

• Minnesota DNR LakeFinder
  Checked September 24, 2026
• Minnesota DNR Public Water Access Sites
  Checked September 24, 2026

Survey catches show what DNR nets and electrofishing found on the survey date, not how the fishing is today. Check the current regulations and the Department of Health advice before you keep fish, and confirm access conditions before you tow a boat.