Pine Lake

Pine Lake carries a solid B grade — strong on most parameters, with measurements that hold up well across the summer season. Clarity is the limiting factor — phosphorus is reasonable but suspended particles or algal cells keep water transparency below Wisconsin norms.

The lake sits in the mesotrophic zone — the band where most well-managed Wisconsin lakes fall. A maximum depth of 41 ft puts Pine Lake in the middle of Wisconsin's depth distribution. Pine Lake covers 300 acres alongside partial shoreline records — a mid-sized water that supports a working fishery without being so large that conditions diverge between basins. Within Iron County's 33 graded lakes, Pine Lake ranks 18 — below the local median, though not at the bottom.

An invasive species record — Purple Loosestrife — has been logged at Pine Lake; Wisconsin DNR maintains the official infested-waters list. Walleye are documented at Pine Lake, one of 5 fish species on record for the lake. The grade is based on limited monitoring — fewer than three independent measurement years contribute, so future updates may shift the letter.