Bog Lake

On the LakeGrade scale Bog Lake grades a B, with clarity at 6.6 ft and 14 µg/L of phosphorus placing it above the Minnesota median. Clarity is the limiting factor — phosphorus is reasonable but suspended particles or algal cells keep water transparency below Minnesota norms.

A TSI near 46 places Bog Lake in the mesotrophic band — moderate productivity, with seasonal swings between clearer spring water and richer late-summer conditions. A maximum depth of 38 ft puts Bog Lake in the middle of Minnesota's depth distribution. At 306 acres, Bog Lake fits the Minnesota median for monitored lakes, with 6.9 miles of shoreline. Bog Lake sits at rank 98 of 141 in Itasca County, in the lower half of the local distribution.

Bog Lake has no invasive species recorded in Minnesota state databases as of 2022, though prevention practices still apply at all access points. The fishery includes walleye alongside the lake's other 8 documented species — a notable draw for Minnesota anglers. A documented public access point at Bog Lake makes the lake usable for shore fishing, paddle craft, and trailered boats. Ice-out has been recorded 13 times at Bog Lake, with a median around Apr 20. 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.