Thompson Lake

Details

DNR lake ID

16016000

County

Cook

Surface area

18 acres

Maximum depth

12 feet

Mean depth

8 feet

Shallow water (littoral) area

18 acres, 100% of the lake

Shoreline

0.9 miles

Average water clarity

8.0 feet (Secchi disk, 2 readings)

Latest DNR fish survey

October 2024, standard survey

Surveys on record

8, since 1985

Game fish caught in the 2024 survey

rainbow trout 17, brown trout 1

Fish species recorded

brook trout, brown trout, rainbow trout, and 1 other species

Stocked in 2025

brown trout fingerlings (1,000); rainbow trout yearlings (1,050)

Stocked in 2024

rainbow trout yearlings (1,050)

Stocked in 2023

brown trout fingerlings (1,000); rainbow trout yearlings (1,050)

Stocking years on record

10 of the last 10 (2016 to 2025)

Public accesses (DNR survey record)

1, owned by US Forest Service

Special regulation

Trout: Catch-and-release only. Artificial lures and flies with a single hook only. Use and possession of bait prohibited. Closed to winter fishing.

Fish consumption

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

Size

Under 100 acres

Deepest point

Under 15 feet

Public access

Yes

Stocked in the last 3 years

Yes

Sources

• Minnesota DNR LakeFinder
  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.