Second Lake

Second Lake comes in at a B on the grading rubric — a respectable showing for a Minnesota lake of its size and depth. Clarity, phosphorus, and chlorophyll-a all rate similarly, so there is no obvious single lever to pull on watershed management.

Mesotrophic conditions dominate at Second Lake: enough nutrients for a healthy fishery, not so much that algal blooms become a chronic problem. The lake bottoms out at 47 ft — a moderate depth that supports a warm-water fishery without the year-round cold refuge a deeper basin provides. Second Lake is small — 72 acres alongside 1.7 miles of shoreline — which makes it sensitive to even modest changes in watershed runoff or recreational pressure. Second Lake ranks 33 of 40 in Clearwater County — at the lower end of the locally monitored distribution.

No invasive species are currently listed at Second Lake — the lake remains off the Minnesota infested-waters roster. The state fisheries records do not list documented species for Second Lake, which usually reflects a lack of formal fisheries survey work rather than an empty lake. A documented public access point at Second Lake makes the lake usable for shore fishing, paddle craft, and trailered boats. The grade is based on limited monitoring — fewer than three independent measurement years contribute, so future updates may shift the letter.