Schoolcraft Lake

On the LakeGrade scale Schoolcraft Lake grades a B, with clarity at 8.4 ft and 29 µg/L of phosphorus placing it above the Minnesota median. The three sub-grades — clarity, phosphorus, and chlorophyll-a — track close together, so no single parameter is dragging the average.

Mesotrophic conditions dominate at Schoolcraft Lake: enough nutrients for a healthy fishery, not so much that algal blooms become a chronic problem. Schoolcraft Lake reaches 37 ft at its deepest point — typical for Minnesota mid-sized lakes, with seasonal stratification but limited cold-water refuge. At 170 acres, Schoolcraft Lake fits the Minnesota median for monitored lakes, with 3.0 miles of shoreline. Within the 77 graded lakes of Hubbard County, Schoolcraft Lake sits at rank 69, near the bottom of the county list.

No invasive species are currently listed at Schoolcraft Lake — the lake remains off the Minnesota infested-waters roster. The fishery includes walleye alongside the lake's other 11 documented species — a notable draw for Minnesota anglers. A documented public access point at Schoolcraft 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.