Fox Lake

Fox Lake sits at a C on the grading scale — not impaired, not pristine, with summer measurements that vary year to year. 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.

Mesotrophic conditions dominate at Fox Lake: enough nutrients for a healthy fishery, not so much that algal blooms become a chronic problem. A maximum depth of 23 ft puts Fox Lake in the middle of Wisconsin's depth distribution. At 44 acres, Fox Lake sits below the Wisconsin median: a small water where shoreline activity has an outsized effect on water quality. Within Iron County's 33 graded lakes, Fox Lake ranks 22 — below the local median, though not at the bottom.

Fox Lake has no invasive species recorded in Wisconsin state databases as of 2024, though prevention practices still apply at all access points. The fishery is bass-led, with 3 documented species across the lake's records. The grade is based on limited monitoring — fewer than three independent measurement years contribute, so future updates may shift the letter.