Baby Lake

On the LakeGrade rubric, Baby Lake pulls an A: clarity at 12.5 ft and 9 µg/L of phosphorus put it in the top bracket for Minnesota. Clarity, phosphorus, and chlorophyll-a all rate similarly, so there is no obvious single lever to pull on watershed management.

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. At 69 ft of maximum depth, Baby Lake stratifies reliably through the summer — the hypolimnion stays cooler and clearer than the surface layer suggests. The lake's 737 acres and 11.7 miles of shoreline put it in the mid-range bucket — large enough for varied use, small enough that watershed inputs reach the whole basin. Baby Lake ranks 64 of 133 in Cass County — solidly in the upper half of the local distribution.

No invasive species are currently listed at Baby Lake — the lake remains off the Minnesota infested-waters roster. Baby Lake's fishery is anchored by muskellunge, with 16 documented species in total — a destination water for muskie anglers. Public access is available — the lake is on the Minnesota PCA public-access list. The lake has a long ice-out record — 26 observations on file, with a median ice-out around Apr 20. The grade is based on limited monitoring — fewer than three independent measurement years contribute, so future updates may shift the letter.