Armstrong Lake

Details

DNR lake ID

69027800

County

St. Louis

Surface area

382 acres

Maximum depth

34 feet

Shallow water (littoral) area

102 acres, 27% of the lake

Shoreline

4.5 miles

Average water clarity

14.4 feet (Secchi disk, 4 readings)

Nearest town (DNR)

Ely

Latest DNR fish survey

August 2021, standard survey

Surveys on record

8, since 1982

Game fish caught in the 2021 survey

largemouth bass 174, bluegill 169, walleye 44, northern pike 39, yellow perch 21, smallmouth bass 11, rock bass 9, black crappie 6

Fish species recorded

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

Stocked in 2025

walleye fingerlings (4,182)

Stocked in 2023

walleye fingerlings (5,918)

Stocked in 2021

walleye fingerlings (6,183)

Stocking years on record

6 of the last 10 (2016 to 2025)

Armstrong Lake Public Water Access Site

trailer launch, concrete plank ramp, 1 dock, 14 trailer spaces, run by DNR Division of Parks and Trails

Fish consumption

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

Size

100 to 499 acres

Deepest point

30 to 59 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.