Wolf Lake

The LakeGrade rubric puts Wolf Lake at a C: clarity at 9.0 ft, phosphorus readings still being added, and a TSI of 45 signal an intermediate trophic state.

Mesotrophic conditions dominate at Wolf Lake: enough nutrients for a healthy fishery, not so much that algal blooms become a chronic problem. The lake bottoms out at 28 ft — a moderate depth that supports a warm-water fishery without the year-round cold refuge a deeper basin provides. At 289 acres, Wolf Lake fits the Minnesota median for monitored lakes, with 4.5 miles of shoreline. Within St. Louis County's 187 graded lakes, Wolf Lake ranks 101 — below the local median, though not at the bottom.

Wolf 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 8 documented species — a notable draw for Minnesota anglers. Public access is available — the lake is on the Minnesota PCA public-access list. Monitoring depth is thin here: the LakeGrade rubric is applied to a small number of sample years, and the grade will be revised as more data accumulates.