Seventh Crow Wing Lake

Seventh Crow Wing Lake earns a C — middle-of-the-pack water quality, with one or two parameters dragging the average down from a stronger grade. The lake's weakest score is on Secchi depth — the water looks more turbid than its phosphorus number alone would predict.

Eutrophic conditions are the baseline here: clarity drops noticeably in late summer, and dissolved oxygen near the bottom can become a concern. A maximum depth of 42 ft puts Seventh Crow Wing Lake in the middle of Minnesota's depth distribution. Seventh Crow Wing Lake covers 262 acres alongside 3.2 miles of shoreline — a mid-sized water that supports a working fishery without being so large that conditions diverge between basins. Within the 77 graded lakes of Hubbard County, Seventh Crow Wing Lake sits at rank 73, near the bottom of the county list.

Seventh Crow Wing 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 alongside the lake's other 14 documented species — a notable draw for Minnesota anglers. No formal public access is documented at Seventh Crow Wing 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.