Landgren Lake

On the LakeGrade scale Landgren Lake grades a B, with clarity at 13.0 ft and phosphorus readings still being added placing it above the Minnesota median. Clarity, phosphorus, and chlorophyll-a all rate similarly, so there is no obvious single lever to pull on watershed management.

The lake sits in the mesotrophic zone — the band where most well-managed Minnesota lakes fall. The lake bottoms out at 47 ft — a moderate depth that supports a warm-water fishery without the year-round cold refuge a deeper basin provides. Landgren Lake is small — 54 acres alongside 2.1 miles of shoreline — which makes it sensitive to even modest changes in watershed runoff or recreational pressure. Among the 53 graded lakes in Aitkin County, Landgren Lake sits at rank 24, above the county median.

Landgren Lake has no invasive species recorded in Minnesota state databases as of 2024, though prevention practices still apply at all access points. Bass fishing is part of the appeal: the species list runs to 11, anchored by largemouth and/or smallmouth bass. No formal public access is documented at Landgren Lake — most use is by shoreline residents and their guests. 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.