Moose Lake

Moose Lake comes in at a B on the grading rubric — a respectable showing for a Minnesota lake of its size and depth. Clarity, phosphorus, and chlorophyll-a all rate similarly, so there is no obvious single lever to pull on watershed management.

A TSI near 42 places Moose Lake in the mesotrophic band — moderate productivity, with seasonal swings between clearer spring water and richer late-summer conditions. The lake's 61 ft maximum depth is in the upper tier for Minnesota — deep enough for cold-water fish to find refuge in summer. Moose Lake covers 1,273 acres alongside 7.3 miles of shoreline, large enough that conditions can vary meaningfully between bays. Moose Lake ranks 65 of 141 in Itasca County — solidly in the upper half of the local distribution.

Zebra mussels have been documented at Moose Lake, which alters the filter-feeding balance and can paradoxically increase water clarity while disrupting the food web. Moose Lake's fishery is anchored by muskellunge, with 17 documented species in total — a destination water for muskie anglers. A documented public access point at Moose Lake makes the lake usable for shore fishing, paddle craft, and trailered boats. The grade is based on limited monitoring — fewer than three independent measurement years contribute, so future updates may shift the letter.