Mary Lake (Wright County, DOW 86019300)
Wright County, Minnesota - DNR stocking history, depth and survey data
Minnesota · Minnesota Department of Natural Resources (DNR) · DOW 86019300
DNR records show 1 stocking entry at Mary Lake (Wright County, DOW 86019300) since 2025, most recently walleye yearlings in 2025 (2,000 fish).
- Mary Lake (Wright County, DOW 86019300) has 1 DNR stocking record across 1 year (2025-2025): walleye (1).
- The most-stocked species by count is walleye: 2,000 fish on record.
- Maximum depth 46 ft, mean depth 18 ft; surface area 190 acres, 85 littoral acres, 2.3 miles of shoreline, per the DNR lake survey.
- Average water clarity (Secchi depth) 6.3 ft.
- Fish species DNR lists here: black crappie, bluegill, brown bullhead, common carp, green sunfish, hybrid sunfish, largemouth bass, 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).
- Wright County, nearest town Oster; DNR lake number (DOW) 86019300.
Depth map
Bathymetric contours from the Minnesota DNR lake survey mapped 8/6/1970 (orig map); depths in feet. Simplified for the web; not for navigation.
Stocking history
| Year | Species | Size | Number | Pounds |
|---|---|---|---|---|
| 2025 | Walleye1 | yearlings | 2,000 | 160.0 |
1 fish purchased and stocked by private citizens and sporting groups.
Field note · Minnesota stocks by year, not by truck day: walleye fry go in within weeks of ice-out, fingerlings and yearlings mostly in fall, and stream trout in spring and fall. A row here means the fish went in during that year; DNR adds the year's rows after the fact, so the current year can look empty until winter.
Public accesses
| Type | Owner | Where |
|---|---|---|
| concrete ramp | PRI | The Winsted Sportsman's Club owns and maintains a public access on the southeast side of the lake off Grunwald Ave SW. |
DNR fish survey, 2024
| Species | Gear | Catch per net | Total catch | Avg lb |
|---|---|---|---|---|
| Bluegill | 15-ft beach seine | 76.33 | 229 | 0.00 |
| Largemouth bass | 15-ft beach seine | 7.00 | 21 | 0.00 |
| Hybrid sunfish | 15-ft beach seine | 2.00 | 6 | 0.00 |
| Pumpkinseed | 15-ft beach seine | 1.00 | 3 | 0.00 |
| Iowa darter | 15-ft beach seine | 0.33 | 1 | 0.00 |
| Johnny darter | 15-ft beach seine | 0.33 | 1 | 0.00 |
| Yellow perch | 15-ft beach seine | 0.33 | 1 | 0.00 |
| Bluegill | Backpack electrofishing | 73.71 | 69 | 0.00 |
| Green sunfish | Backpack electrofishing | 27.77 | 26 | 0.00 |
| Hybrid sunfish | Backpack electrofishing | 23.50 | 22 | 0.00 |
| Largemouth bass | Backpack electrofishing | 18.16 | 17 | 0.00 |
| Yellow bullhead | Backpack electrofishing | 3.20 | 3 | 0.00 |
| Yellow perch | Backpack electrofishing | 3.20 | 3 | 0.00 |
| Iowa darter | Backpack electrofishing | 1.07 | 1 | 0.00 |
| Tadpole madtom | Backpack electrofishing | 1.07 | 1 | 0.00 |
| Bluegill | 50-ft beach seine | 43.43 | 304 | 0.00 |
| Largemouth bass | 50-ft beach seine | 9.14 | 64 | 0.00 |
| Pumpkinseed | 50-ft beach seine | 1.57 | 11 | 0.00 |
| Hybrid sunfish | 50-ft beach seine | 1.57 | 11 | 0.00 |
| Yellow perch | 50-ft beach seine | 1.29 | 9 | 0.00 |
| Iowa darter | 50-ft beach seine | 0.57 | 4 | 0.00 |
| Brook stickleback | 50-ft beach seine | 0.43 | 3 | 0.00 |
| Tadpole madtom | 50-ft beach seine | 0.29 | 2 | 0.00 |
| Bluegill | Standard trap nets | 22.11 | 199 | 0.12 |
| Hybrid sunfish | Standard trap nets | 9.00 | 81 | 0.23 |
| Pumpkinseed | Standard trap nets | 4.56 | 41 | 0.23 |
| Brown bullhead | Standard trap nets | 1.56 | 14 | 1.02 |
| Yellow bullhead | Standard trap nets | 1.44 | 13 | 0.60 |
| Black crappie | Standard trap nets | 1.44 | 13 | 0.17 |
| Largemouth bass | Standard trap nets | 0.56 | 5 | 0.38 |
| Walleye | Standard trap nets | 0.33 | 3 | 3.97 |
| Bluegill | Standard gill nets | 22.00 | 132 | 0.23 |
| Black crappie | Standard gill nets | 9.67 | 58 | 0.40 |
| Yellow perch | Standard gill nets | 4.17 | 25 | 0.11 |
| Pumpkinseed | Standard gill nets | 3.83 | 23 | 0.23 |
| Northern pike | Standard gill nets | 3.33 | 20 | 4.53 |
| Brown bullhead | Standard gill nets | 3.00 | 18 | 1.07 |
| Walleye | Standard gill nets | 3.00 | 18 | 2.58 |
| Largemouth bass | Standard gill nets | 2.83 | 17 | 1.08 |
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 targeted survey of nearshore fish species in Mary Lake was conducted beginning on July 22nd, 2024, by Index of Biological Integrity (IBI) Program staff. Sampling sites were evenly spaced around the lake, and each was sampled by backpack electrofishing and seining with a 50-foot or 15-foot seine, where possible. Backpack electrofishing was completed at 10 sampling stations. Similarly, a 50-foot seine was used to sample 7 stations, and a 15-foot seine was used at 3 stations. Nearshore sampling captured 11 species of fish including two species that are intolerant of disturbance (Iowa Darter and Least Darter) and one that is tolerant of disturbance (Green Sunfish). A concurrent summer trap net survey was also conducted by IBI Program staff. Nine trap nets were set along the shoreline in locations that encompassed multiple habitat types. Trap net sampling captured 12 species of fish, two considered to be tolerant of disturbance (Green Sunfish and Common Carp). Bluegill and Pumpkinseed comprised a majority of the catch by number and the majority by biomass. A concurrent summer gill net survey was conducted on July 22nd to July 25th, 2024, by IBI Program Staff. Six gill nets were set in offshore locations that encompassed deeper littoral habitat. Black Crappie and Bluegill comprised a majority of the gill net catch by number, and Northern Pike, Walleye, and Bluegill comprised a majority of the catch by biomass. The number of Northern Pike sampled per net (3.3 /net) was near the 50% quartile for Lake Class 24 lakes (3.7/net) with an average length of 26.8 inches; and the number of Walleye sampled per net (3.0 /net) was above the 50% quartile for Lake Class 24 lakes (2.8/net) with an average length of 19.9 inches. Data from all gears were combined to describe the fish community and provide a fish-based IBI (FIBI) score. The FIBI uses fish community data to measure a lake's health, and the types of fish species present can help identify any stressors that may be negatively affecting the lake environment. In Minnesota lakes, certain fish species cannot survive without clean water and a healthy habitat (e.g., Iowa Darter), while other species are tolerant of degraded conditions (e.g., Green Sunfish and Common Carp). The FIBI score, composed of several fish community diversity and composition metrics, indicates the overall health of a lake by comparing it to what is expected for a healthy lake. For additional information on the FIBI, search for "lake index of biological integrity" on the mndnr.gov website. Results from this survey provide evidence that the fish…
Minnesota DNR survey narrative, .
All Minnesota stockings · every Minnesota lake with a page · state CSV · this lake on DNR LakeFinder
Stocking rows, depths, accesses and survey figures are Minnesota DNR LakeFinder data as of 2026-09-02; contours are the DNR bathymetric survey. Regulations, slot limits and special rules are on the DNR page linked above, not here.
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