Wabana Lake

On the LakeGrade rubric, Wabana Lake pulls an A: clarity at 18.0 ft and 8 µg/L of phosphorus put it in the top bracket for Minnesota. With clarity and phosphorus scored, the sub-grades cluster within a letter of each other, pointing to stable conditions rather than one specific stressor.

A TSI value of 35 puts Wabana Lake in the oligotrophic range, where biological productivity stays low and the water column remains clear. Wabana Lake is unusually deep for Minnesota at 115 ft, which buffers the lake against summer warming and helps the deep water stay oxygenated. At 2,221 acres, Wabana Lake is one of the larger lakes in Itasca County, with 25.3 miles of shoreline supporting multiple distinct use patterns. Among the 141 graded lakes in Itasca County, Wabana Lake ranks 14 — in the top quartile locally.

Wabana 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 Wabana Lake makes the lake usable for shore fishing, paddle craft, and trailered boats. The lake has a long ice-out record — 29 observations on file, with a median ice-out around Apr 25. The grade is based on limited monitoring — fewer than three independent measurement years contribute, so future updates may shift the letter.