Middle Lake -Spread Eagle Chain

Middle Lake -Spread Eagle Chain carries a solid B grade — strong on most parameters, with measurements that hold up well across the summer season.

Trophically, Middle Lake -Spread Eagle Chain reads as oligotrophic — nutrient-poor, clear, and ecologically more sensitive to disturbance than richer lakes. Middle Lake -Spread Eagle Chain is unusually deep for Wisconsin at 54 ft, which buffers the lake against summer warming and helps the deep water stay oxygenated. Middle Lake -Spread Eagle Chain is small — 83 acres alongside partial shoreline records — which makes it sensitive to even modest changes in watershed runoff or recreational pressure. Middle Lake -Spread Eagle Chain sits at rank 24 of 39 in Florence County, in the lower half of the local distribution.

Zebra mussels have been documented at Middle Lake -Spread Eagle Chain, which alters the filter-feeding balance and can paradoxically increase water clarity while disrupting the food web. The fishery includes walleye among the lake's 5 documented species — a notable draw for Wisconsin anglers. 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.