Swamp Lake
Cass County
Walleye lake, Northern pike lake, Bass lake, Sunfish lake
Lake Twenty-One
Public access
Lake Twenty-One is a 36-acre lake in Hubbard County, 52 feet at its deepest. The DNR last surveyed its fish in 2015. Recorded species include walleye, northern pike and largemouth bass.
Details
- DNR lake ID
- 29013000
- County
- Hubbard
- Surface area
- 36 acres
- Maximum depth
- 52 feet
- Shallow water (littoral) area
- 23 acres, 64% of the lake
- Shoreline
- 1.2 miles
- Average water clarity
- 21.6 feet (Secchi disk, 1 readings)
- Latest DNR fish survey
- July 2015, standard survey
- Surveys on record
- 4, since 1988
- Game fish caught in the 2015 survey
- bluegill 525, pumpkinseed 43, northern pike 26, yellow perch 25, largemouth bass 9, rock bass 1
- Fish species recorded
- bluegill, largemouth bass, northern pike, pumpkinseed, rock bass, walleye, yellow perch, and 1 other species
- Twentyone Lake Public Water Access Site
- trailer launch, gravel ramp, 1 dock, 5 trailer spaces, toilet, run by DNR Division of Parks and Trails
- Fish consumption
- Follow the statewide guidelines; fish from this lake have not been tested
- Size
- Under 100 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.
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