Rossman Lake

Rossman Lake earns a C — middle-of-the-pack water quality, with one or two parameters dragging the average down from a stronger grade. The three sub-grades — clarity, phosphorus, and chlorophyll-a — track close together, so no single parameter is dragging the average.

A TSI near 48 places Rossman Lake in the mesotrophic band — moderate productivity, with seasonal swings between clearer spring water and richer late-summer conditions. A maximum depth of 20 ft puts Rossman Lake in the middle of Minnesota's depth distribution. The lake's 273 acres and 5.8 miles of shoreline put it in the mid-range bucket — large enough for varied use, small enough that watershed inputs reach the whole basin. Rossman Lake sits at rank 66 of 93 in Becker County, in the lower half of the local distribution.

No invasive species are currently listed at Rossman Lake — the lake remains off the Minnesota infested-waters roster. The fishery is bass-led, with 12 documented species across the lake's records. No formal public access is documented at Rossman Lake — most use is by shoreline residents and their guests. The lake has a partial ice record — 10 observed ice-outs, centered near Apr 26. 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.