Minnesota · ranked from DNR surveys
Best crappie lakes in Lyon County
The DNR has surveyed crappie in 9 lakes in Lyon County. The 4 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.
School Grove Lake is first at B+. The DNR caught 3.7 crappie per trap net in the 2025 survey, and the biggest was 12 inches. Goose Lake is second at B+, with 5 crappie per trap net in the 2023 survey, and 66% of its crappie measured over 10 inches. Rock Lake is third at B+, and its biggest crappie was 12 inches.
| # | Lake | Grade | Acres | Survey catch rate | Over 10" | Biggest Surveyed | Avg wt | Surveyed |
|---|---|---|---|---|---|---|---|---|
| 1 | School Grove Lake | B+ | 349 | 3.7/net in trap nets | 67% | 12" | 0.8 lb | 2025 |
| 2 | Goose Lake | B+ | 150 | 5/net in trap nets | 66% | 12" | 0.7 lb | 2023 |
| 3 | Rock Lake | B+ | 379 | 3.2/net in trap nets | 66% | 12" | 0.5 lb | 2025 |
| 4 | McKay Lake | C+ | 167 | — | 0% | 4" | — | 2025 |
Also ranked in Lyon County: Walleye · Northern pike · Yellow perch
All of Minnesota: Best crappie 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.