Fishing Colwell Lake

Schoolcraft County, Michigan · 25 ft max depth · DNR Survey 2023

Scout's Fishing Notes

Colwell Lake offers an unusual fishing experience dominated by overabundant Northern Pike - one of the highest catch rates ever recorded in Michigan at 14.0 fish per net night. The 158-acre seepage lake reaches 20 feet deep with abundant aquatic vegetation and a sandy shoreline. Most Northern Pike run 15-20 inches with slow growth rates averaging 5.1 inches below state average. Winter oxygen levels drop to critical levels below 5 feet, with the bottom half fully anoxic, while summer provides good habitat to 15 feet depth. The panfish population has recovered from historical stunting issues but remains modest in quality - Bluegill are most abundant but few exceed 7 inches, while Black Crappie show the same pattern with growth 2.3 inches below average. Brown Bullhead are the standout species with 95% reaching preferred size. The lake has high densities of submerged trees (102 per km) providing structure. Largemouth Bass are nearly absent with only 3 fish captured, possibly due to Northern Pike predation. The forest service campground and boat launch provide access to this undeveloped Hiawatha National Forest lake. Low alkalinity (40 mg/L) suggests less buffering capacity than typical Northern Michigan lakes. Primary productivity occurs through vegetation rather than algae based on very low chlorophyll levels. Anglers should target Northern Pike aggressively and keep smaller fish to help balance the population.

Top PredatorNorthern Pike
Top PanfishBluegill
Overall QualityModest panfish fishery with overabundant Northern Pike population. Poor size structure for most species except Brown Bullhead.

Species Survey Data

DNR survey 2023 · Biologist: Michael Glubzinski · Report #0420

Species Count Size Range Growth % Legal
Bluegill 354
Black Crappie 193 -2.3 below average
Northern Pike 122 15-20" -5.1 well below average
Pumpkinseed 90
Rock Bass 87
Brown Bullhead 84
White Sucker 8
Yellow Perch 5
Largemouth Bass 3
Bluntnose Minnow

Water Quality

15 ftGood O₂ Depth
40 mg/LAlkalinity

Stocking History

YearSpeciesNumberStage
1993 Largemouth Bass 170 adult
1971 Northern Pike 122 adult
1968 Northern Pike 950 fall fingerling
1967 Northern Pike 190 spring fingerling
1942 Bluegill 1,800 4 months
1941 Smallmouth Bass 280 adult
1940 Bluegill 3,000 4 months
1940 Smallmouth Bass 500 3 months
1937 Bluegill 5,000 3 months
1936 Bluegill 13,500 5-6 months
1936 Smallmouth Bass 100 4 months
1936 Yellow Perch 2,000 adult
1935 Largemouth Bass 100 adult
1934 Bluegill 1,800 4 months
1933 Bluegill 900 5 months
1933 Largemouth Bass 150 4 months
1933 Walleye 60,000 Swim-up fry

DNR Management Direction

Northern Pike managed under 'No minimum size, 5 fish bag limit (with only one ≥ 24')' regulation since 2022. Anglers encouraged to keep undersized Northern Pike and smaller panfish (7') to improve size structure. Resurvey recommended in 5-10 years.

Fishing Tournaments & Competitions

Check for upcoming registered bass, walleye, and muskellunge tournaments on Colwell Lake.

Michigan Fishing Resources

DNR Fishery Report · Data: Michigan DNR · ← Back to Colwell Lake Guide