Blackduck Lake

Details

DNR lake ID

04006900

County

Beltrami

Surface area

2,711 acres

Maximum depth

28 feet

Shallow water (littoral) area

1,374 acres, 51% of the lake

Shoreline

13.3 miles

Average water clarity

6.9 feet (Secchi disk, 4 readings)

Latest DNR fish survey

August 2025, targeted survey

Surveys on record

12, since 1983

Fish species recorded

black crappie, bluegill, hybrid sunfish, largemouth bass, northern pike, pumpkinseed, rock bass, walleye, yellow perch, and 17 other species

Stocked in 2024

walleye fry (1,379,000)

Stocked in 2023

walleye fry (1,376,000)

Stocked in 2021

walleye fry (1,376,000)

Stocking years on record

5 of the last 10 (2017 to 2024)

Blackduck Lake, Pine Tree Park Public Water Access Site

trailer launch, concrete slab ramp, 1 dock, 22 trailer spaces, toilet, run by DNR Division of Parks and Trails

Blackduck Lake, West Public Water Access Site

trailer launch, concrete slab ramp, 1 dock, 9 trailer spaces, toilet, run by DNR Division of Parks and Trails

Infested waters list

faucet snail, starry stonewort

Special regulation

Sunfish: Daily limit five.

Fish consumption

Follow the statewide guidelines; fish from this lake have been tested

Size

2,000 acres or more

Deepest point

15 to 29 feet

Public access

Yes

Stocked in the last 3 years

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.