Green Prairie Fish Lake

Green Prairie Fish Lake sits at a C on the grading scale — not impaired, not pristine, with summer measurements that vary year to year.

Mesotrophic conditions dominate at Green Prairie Fish Lake: enough nutrients for a healthy fishery, not so much that algal blooms become a chronic problem. Green Prairie Fish Lake reaches 22 ft at its deepest point — typical for Minnesota mid-sized lakes, with seasonal stratification but limited cold-water refuge. The lake's 182 acres and 2.5 miles of shoreline put it in the mid-range bucket — large enough for varied use, small enough that watershed inputs reach the whole basin. Green Prairie Fish Lake sits at rank 12 of 16 in Morrison County, in the lower half of the local distribution.

Green Prairie Fish Lake has no invasive species recorded in Minnesota state databases as of 2024, though prevention practices still apply at all access points. The fishery includes walleye among the lake's 14 documented species — a notable draw for Minnesota anglers. A documented public access point at Green Prairie Fish Lake makes the lake usable for shore fishing, paddle craft, and trailered boats. The lake has a partial ice record — 10 observed ice-outs, centered near Apr 16. The grade is based on limited monitoring — fewer than three independent measurement years contribute, so future updates may shift the letter.