Hoot Owl Lake

Hoot Owl Lake earns an A — water clarity, phosphorus, and chlorophyll-a all rate among the best monitored waters in Clearwater County. 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. The lake's 78 ft maximum depth is in the upper tier for Minnesota — deep enough for cold-water fish to find refuge in summer. Hoot Owl Lake is small — 84 acres alongside 2.2 miles of shoreline — which makes it sensitive to even modest changes in watershed runoff or recreational pressure. Among the 40 graded lakes in Clearwater County, Hoot Owl Lake sits at rank 20, above the county median.

Hoot Owl 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 Hoot Owl Lake, which usually reflects a lack of formal fisheries survey work rather than an empty lake. No formal public access is documented at Hoot Owl Lake — most use is by shoreline residents and their guests. The grade is based on limited monitoring — fewer than three independent measurement years contribute, so future updates may shift the letter.