Vanduse Lake

On the LakeGrade scale Vanduse Lake grades a B, with clarity at 11.0 ft and phosphorus readings still being added placing it above the Minnesota median. The three sub-grades — clarity, phosphorus, and chlorophyll-a — track close together, so no single parameter is dragging the average.

A TSI near 43 places Vanduse Lake in the mesotrophic band — moderate productivity, with seasonal swings between clearer spring water and richer late-summer conditions. Vanduse Lake reaches 27 ft at its deepest point — typical for Minnesota mid-sized lakes, with seasonal stratification but limited cold-water refuge. At 240 acres, Vanduse Lake fits the Minnesota median for monitored lakes, with 5.7 miles of shoreline. Among the 53 graded lakes in Aitkin County, Vanduse Lake sits at rank 19, above the county median.

Vanduse 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 12, anchored by largemouth and/or smallmouth bass. Public access is available — the lake is on the Minnesota PCA public-access list. The lake has a partial ice record — 22 observed ice-outs, centered near Apr 20. 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.