Ball Club Lake

On the LakeGrade rubric, Ball Club Lake pulls an A: clarity at 15.5 ft and phosphorus readings still being added put it in the top bracket for Minnesota. 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. At 85 ft of maximum depth, Ball Club Lake stratifies reliably through the summer — the hypolimnion stays cooler and clearer than the surface layer suggests. Ball Club Lake covers 4,335 acres alongside 19.5 miles of shoreline, large enough that conditions can vary meaningfully between bays. Among the 141 graded lakes in Itasca County, Ball Club Lake ranks 30 — in the top quartile locally.

Zebra mussel presence at Ball Club Lake means the lake's clarity numbers carry an asterisk — filtered water is not the same as nutrient-poor water. Walleye are documented at Ball Club Lake, one of 11 fish species on record for the lake. Public access is available — the lake is on the Minnesota PCA public-access list. Monitoring depth is thin here: the LakeGrade rubric is applied to a small number of sample years, and the grade will be revised as more data accumulates.