Sagatagan Lake

Sagatagan Lake earns an A — every scored parameter (clarity) rates among the best monitored waters in Stearns County.

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. A maximum depth of 42 ft puts Sagatagan Lake in the middle of Minnesota's depth distribution. At 227 acres, Sagatagan Lake fits the Minnesota median for monitored lakes, with 6.0 miles of shoreline. Among the 55 graded lakes in Stearns County, Sagatagan Lake ranks 5 — in the top quartile locally.

Sagatagan Lake has no invasive species recorded in Minnesota state databases as of 2024, though prevention practices still apply at all access points. Bass fishing is part of the appeal: the species list runs to 1, anchored by largemouth and/or smallmouth bass. No formal public access is documented at Sagatagan Lake — most use is by shoreline residents and their guests. The lake has a long ice-out record — 48 observations on file, with a median ice-out around Apr 9. The grade is based on limited monitoring — fewer than three independent measurement years contribute, so future updates may shift the letter.