Boulder Lake

Details

DNR lake ID

29016200

County

Hubbard

Surface area

341 acres

Maximum depth

28 feet

Shallow water (littoral) area

180 acres, 53% of the lake

Shoreline

4.9 miles

Average water clarity

11.1 feet (Secchi disk, 4 readings)

Nearest town (DNR)

Dorset

Latest DNR fish survey

August 2023, standard survey

Surveys on record

12, since 1949

Game fish caught in the 2023 survey

largemouth bass 266, yellow perch 118, bluegill 68, smallmouth bass 59, pumpkinseed 58, northern pike 56, black crappie 49, walleye 32

Fish species recorded

black crappie, bluegill, hybrid sunfish, largemouth bass, northern pike, northern pike (silver phase), pumpkinseed, rock bass, smallmouth bass, walleye, yellow perch, and 9 other species

Stocked in 2024

walleye fingerlings (881); walleye yearlings (445)

Stocked in 2022

walleye fingerlings (3,960)

Stocked in 2020

walleye fingerlings (4,500)

Stocking years on record

5 of the last 10 (2016 to 2024)

Boulder Lake Public Water Access Site

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

Infested waters list

faucet snail

Fish consumption

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

Size

100 to 499 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.