South Oscar Lake
Douglas County, Minnesota - DNR stocking history, depth and survey data
Minnesota · Minnesota Department of Natural Resources (DNR) · DOW 21025702
DNR records show 1 stocking entry at South Oscar Lake since 2025, most recently walleye fingerlings in 2025 (11,000 fish).
- South Oscar Lake has 1 DNR stocking record across 1 year (2025-2025): walleye (1).
- The most-stocked species by count is walleye: 11,000 fish on record.
- Maximum depth 25 ft, mean depth 13 ft; surface area 997 acres, 473 littoral acres, 11.4 miles of shoreline, per the DNR lake survey.
- Average water clarity (Secchi depth) 6.5 ft.
- Fish species DNR lists here: black crappie, bluegill, brown bullhead, green sunfish, hybrid sunfish, largemouth bass, muskellunge, northern pike, pumpkinseed, walleye, white sucker, yellow bullhead, and 1 more.
- 1 public access on the DNR list.
- Most recent DNR fish survey: (targeted survey).
- Douglas County; DNR lake number (DOW) 21025702.
Depth map
Bathymetric contours from the Minnesota DNR lake survey (get source); depths in feet. Simplified for the web; not for navigation.
Stocking history
| Year | Species | Size | Number | Pounds |
|---|---|---|---|---|
| 2025 | Walleye1 | fingerlings | 11,000 | 500.0 |
1 fish purchased and stocked by private citizens and sporting groups.
Public accesses
| Type | Owner | Where |
|---|---|---|
| concrete ramp | Minnesota DNR |
DNR fish survey, 2025
| Species | Gear | Catch per net | Total catch | Avg lb |
|---|---|---|---|---|
| Muskellunge | Special electrofishing | 2.38 | 56 | 18.17 |
Catch per net (CPUE) is the DNR survey's count per gill net or trap net set; higher means more of that species were sampled, not a fishing forecast. Top species per gear shown; where we have no verified common name for a DNR code, the code itself is shown.
A mark-recapture population estimate of Muskies took place on Oscar Lake during the springs of 2024 and 2025 using passive integrated transponder (PIT) tags. Fish were sampled via electrofishing. A total of 63 individual fish were PIT tagged between the two years. Lengths ranged from 17.1 to 52.8 inches; average length was 40.3 inches. The population estimate was 118 adult (30 inches or greater) muskies, equating to an adult Muskie for every 8.3 surface acres (4.0 littoral acres).
Minnesota DNR survey narrative, .
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