Blackwell Lake

Details

DNR lake ID

21015100

County

Douglas

Surface area

307 acres

Maximum depth

42 feet

Mean depth

10 feet

Shallow water (littoral) area

203 acres, 66% of the lake

Shoreline

5.2 miles

Average water clarity

11.6 feet (Secchi disk, 3 readings)

Nearest town (DNR)

Holmes City

Latest DNR fish survey

July 2022, targeted survey

Surveys on record

12, since 1974

Game fish caught in the 2022 survey

bluegill 101, pumpkinseed 41, hybrid sunfish 16, northern pike 8, black crappie 8, largemouth bass 6

Fish species recorded

black crappie, bluegill, green sunfish, hybrid sunfish, largemouth bass, northern pike, pumpkinseed, walleye, yellow perch, and 13 other species

Blackwell Lake (N) Public Water Access Site

carry-in, natural ramp, run by DNR Division of Parks and Trails

Blackwell Lake (S) Public Water Access Site

trailer launch, concrete slab ramp, 1 dock, 4 trailer spaces, run by DNR Division of Parks and Trails

Infested waters list

zebra mussel

Special regulation

Sunfish: Daily limit 10.

Fish consumption

Follow the statewide 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.