Oslo Lake

Details

DNR lake ID

69083800

County

St. Louis

Surface area

99 acres

Maximum depth

36 feet

Shallow water (littoral) area

58 acres, 58% of the lake

Shoreline

3.7 miles

Average water clarity

9.0 feet (Secchi disk, 2 readings)

Nearest town (DNR)

Kettle Falls

Latest DNR fish survey

July 2025, standard survey

Surveys on record

2, since 2010

Game fish caught in the 2025 survey

northern pike 47, yellow perch 2

Fish species recorded

northern pike, yellow perch

Public accesses (DNR survey record)

1, owned by National Park Service

Eating advice, sensitive populations

northern pike: all sizes - do not eat

Eating advice, general populations

northern pike: all sizes - 1 serving/month

Size

Under 100 acres

Deepest point

30 to 59 feet

Public access

Yes

Lake-specific eating advice

Yes

Sources

• Minnesota DNR LakeFinder
  Checked September 24, 2026
• Minnesota Department of Health fish consumption guidelines
  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.