Three Island Lake

Details

DNR lake ID

04013400

County

Beltrami

Surface area

729 acres

Maximum depth

25 feet

Shallow water (littoral) area

635 acres, 87% of the lake

Shoreline

10.4 miles

Average water clarity

6.7 feet (Secchi disk, 1 readings)

Latest DNR fish survey

August 2021, standard survey

Surveys on record

10, since 1975

Game fish caught in the 2021 survey

bluegill 102, pumpkinseed 98, northern pike 96, yellow perch 72, walleye 29, rock bass 26, black crappie 16, largemouth bass 11

Fish species recorded

black crappie, bluegill, hybrid sunfish, largemouth bass, northern pike, northern sunfish, pumpkinseed, rock bass, walleye, yellow perch, and 20 other species

Stocked in 2025

walleye fry (313,000)

Stocked in 2023

walleye fry (317,000)

Stocked in 2021

walleye fry (319,000)

Stocking years on record

4 of the last 10 (2019 to 2025)

Three Island Lake Public Water Access Site

trailer launch, natural ramp, 1 dock, 3 trailer spaces, run by DNR Division of Parks and Trails

Infested waters list

starry stonewort

Special regulation, Including Turtle River

Sunfish: Daily limit five.

Fish consumption

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

Size

500 to 1,999 acres

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.