Mora Lake

Mora Lake earns a D — measurements through 2023 show persistent nutrient pressure that limits clarity through the summer. The three sub-grades — clarity, phosphorus, and chlorophyll-a — track close together, so no single parameter is dragging the average.

A TSI in the eutrophic range signals a lake doing what nutrient-loaded waters do — supporting an active algal community at the cost of clear water. Mora Lake reaches 24 ft at its deepest point — typical for Minnesota mid-sized lakes, with seasonal stratification but limited cold-water refuge. At 75 acres, Mora Lake sits below the Minnesota median: a small water where shoreline activity has an outsized effect on water quality. Within Kanabec County's 7 graded lakes, Mora Lake ranks 4 — below the local median, though not at the bottom.

No invasive species are currently listed at Mora Lake — the lake remains off the Minnesota infested-waters roster. The state fisheries records do not list documented species for Mora 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.