Long Lake

Details

DNR lake ID

49001500

County

Morrison

Surface area

126 acres

Maximum depth

35 feet

Shallow water (littoral) area

63 acres, 50% of the lake

Shoreline

2.3 miles

Average water clarity

9.9 feet (Secchi disk, 4 readings)

Nearest town (DNR)

Sullivan

Latest DNR fish survey

July 2025, targeted survey

Surveys on record

11, since 1984

Game fish caught in the 2025 survey

bluegill 227, yellow perch 200, largemouth bass 185, green sunfish 106, hybrid sunfish 25, pumpkinseed 20, black crappie 7, northern pike 1

Fish species recorded

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

Long Lake Public Water Access Site

trailer launch, natural ramp, run by Richardson Township

Fish consumption

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

Size

100 to 499 acres

Deepest point

30 to 59 feet

Public access

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.