Little Bass Lake

Little Bass Lake sits at the top of the Minnesota PCA grading rubric with an A, a mark reached by the cleanest lakes in Minnesota. Sub-grades cluster within a single letter of each other, which usually means the lake is in stable trophic balance rather than fighting one specific stressor.

The lake's low TSI puts it in oligotrophic territory — the cleanest of the four trophic classes, but also the most vulnerable to nutrient-driven shifts. A maximum depth of 22 ft puts Little Bass Lake in the middle of Minnesota's depth distribution. Little Bass Lake covers 363 acres alongside 5.0 miles of shoreline — a mid-sized water that supports a working fishery without being so large that conditions diverge between basins. Among the 86 graded lakes in Beltrami County, Little Bass Lake ranks 14 — in the top quartile locally.

Little Bass Lake has no invasive species recorded in Minnesota state databases as of 2024, though prevention practices still apply at all access points. The state fisheries records do not list documented species for Little Bass Lake, which usually reflects a lack of formal fisheries survey work rather than an empty lake. No formal public access is documented at Little Bass Lake — most use is by shoreline residents and their guests. Ice-out has been logged at Little Bass Lake more than two dozen times, putting the median around Apr 16 — a useful baseline for tracking climate trends. The grade is based on limited monitoring — fewer than three independent measurement years contribute, so future updates may shift the letter.