Chub Lake

Chub Lake carries a solid B grade — strong on most parameters, with measurements that hold up well across the summer season.

Trophically, Chub Lake reads as oligotrophic — nutrient-poor, clear, and ecologically more sensitive to disturbance than richer lakes. The lake bottoms out at 28 ft — a moderate depth that supports a warm-water fishery without the year-round cold refuge a deeper basin provides. Chub Lake covers 313 acres alongside 4.8 miles of shoreline — a mid-sized water that supports a working fishery without being so large that conditions diverge between basins. Within Carlton County's 33 graded waters, Chub Lake sits at rank 7, near the top of the local distribution.

Chub Lake carries an invasive watermilfoil record — boat-launch decontamination and shoreline care matter more here than at uninfested lakes. Walleye are documented at Chub Lake, one of 11 fish species on record for the lake. Public access is available — the lake is on the Minnesota PCA public-access list. Ice-out has been recorded 17 times at Chub Lake, with a median around Apr 20. The grade is based on limited monitoring — fewer than three independent measurement years contribute, so future updates may shift the letter.