Middle Spunk Lake

Middle Spunk Lake comes in at a B on the grading rubric — a respectable showing for a Minnesota lake of its size and depth.

Mesotrophic conditions dominate at Middle Spunk Lake: enough nutrients for a healthy fishery, not so much that algal blooms become a chronic problem. Middle Spunk Lake is unusually deep for Minnesota at 81 ft, which buffers the lake against summer warming and helps the deep water stay oxygenated. At 236 acres, Middle Spunk Lake fits the Minnesota median for monitored lakes, with 4.5 miles of shoreline. Middle Spunk Lake ranks 16 of 55 in Stearns County — solidly in the upper half of the local distribution.

Middle Spunk Lake carries an invasive watermilfoil record — boat-launch decontamination and shoreline care matter more here than at uninfested lakes. Walleye are documented at Middle Spunk Lake, one of 17 fish species on record for the lake. A documented public access point at Middle Spunk Lake makes the lake usable for shore fishing, paddle craft, and trailered boats. The lake has a partial ice record — 9 observed ice-outs, centered near Apr 11. The grade is based on limited monitoring — fewer than three independent measurement years contribute, so future updates may shift the letter.