Indianhead Lake

Indianhead Lake earns an F: 110 µg/L of phosphorus and clarity at 1.6 ft signal heavy nutrient loading from the surrounding watershed. 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.

A TSI above 70 puts Indianhead Lake in hypereutrophic territory: visible blooms are common, and clarity rarely climbs even in early summer. The lake's maximum depth is not yet documented in state morphometric records — context for its physical structure remains limited. The lake's surface area is not consistently recorded across state datasets — physical context remains partial. Indianhead Lake ranks 84 of 95 in Hennepin County — at the lower end of the locally monitored distribution.

No invasive species are currently listed at Indianhead Lake — the lake remains off the Minnesota infested-waters roster. The state fisheries records do not list documented species for Indianhead Lake, which usually reflects a lack of formal fisheries survey work rather than an empty lake. The lake lacks a documented public access point, so visitor use is limited. 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.