Caribou Lake

Caribou Lake earns an A — every scored parameter (clarity) rates among the best monitored waters in Itasca County.

Trophically, Caribou Lake reads as oligotrophic — nutrient-poor, clear, and ecologically more sensitive to disturbance than richer lakes. The lake's 152 ft maximum depth is in the upper tier for Minnesota — deep enough for cold-water fish to find refuge in summer. Caribou Lake covers 247 acres alongside 3.5 miles of shoreline — a mid-sized water that supports a working fishery without being so large that conditions diverge between basins. Caribou Lake ranks 13 of 141 in Itasca County, putting it in the upper tier of locally monitored lakes.

Caribou Lake has no invasive species recorded in Minnesota state databases as of 2024, though prevention practices still apply at all access points. The fishery is bass-led, with 7 documented species across the lake's records. Public access is available — the lake is on the Minnesota PCA public-access list. The grade is based on limited monitoring — fewer than three independent measurement years contribute, so future updates may shift the letter.