Minnesota · ranked from DNR surveys
Best muskellunge lakes in Cass County
The DNR has surveyed muskellunge in 13 lakes in Cass County. The 8 ranked below are the ones that earn a grade on this site. Grades come from survey catch rates, fish size and trophy history, scored the same way for every lake on the live map.
Leech Lake is first at A. Its biggest muskellunge in the survey was 50 inches. Little Wolf Lake is second at B+. None of its muskellunge measured over 40 inches. Little Boy Lake is third at B, and its biggest muskellunge was 24 inches.
| # | Lake | Grade | Acres | Survey catch rate | Over 40" | Biggest Surveyed | Avg wt | Surveyed |
|---|---|---|---|---|---|---|---|---|
| 1 | Leech Lake | A | 103,444 | — | 78% | 50" | 21.6 lb | 2025 |
| 2 | Little Wolf Lake | B+ | 525 | — | 0% | 39" | 7.2 lb | 2024 |
| 3 | Little Boy Lake | B | 1,452 | — | 0% | 24" | 2.2 lb | 2024 |
| 4 | Roosevelt Lake | B− | 1,511 | — | 55% | 50" | 17.5 lb | 2024 |
| 5 | Pike Bay Lake | B− | 4,756 | — | 0% | 24" | 2.9 lb | 2025 |
| 6 | Winnibigoshish Lake | B− | 56,471 | — | 100% | 45" | 24 lb | 2025 |
| 7 | Leavitt Lake | B− | 122 | — | 100% | 42" | — | 2023 |
| 8 | Boy Lake | C | 3,308 | — | 0% | 21" | 1.8 lb | 2025 |
Also ranked in Cass County: Walleye · Northern pike · Largemouth bass · Smallmouth bass · Crappie · Bluegill · Yellow perch
All of Minnesota: Best muskellunge lakes in Minnesota
Grades are based on Minnesota DNR survey data: how many fish the DNR caught (scaled by lake size), how many reached quality size, and the biggest fish measured. Each lake's page has the numbers behind its grade. The table shows each lake's most recent survey year.