Fishing Birch Lake

Birch Lake delivers exceptional walleye fishing powered by natural reproduction, with fish ranging 4-21 inches and seven age classes represented in recent surveys. The lake's walleye grow 0.3 inches below state average, but this is actually considered good performance for a naturally reproducing walleye lake in northern Michigan. Smallmouth bass fishing is outstanding, with fish growing 1.4 inches above state average and ranging 3-20 inches across Ages 1-10. Northern Pike also excel here, growing 2.0 inches above average with fish up to 38 inches. Yellow perch provide solid panfishing, growing 1.2 inches above state average. The lake's connection to Lake Michigan via a small outlet occasionally brings in steelhead, with juvenile fish common and occasional large adults like the 23-inch Age-4 fish collected in 2021. Rock Bass dominate the fish community by both numbers and biomass, comprising over one-third of the total catch weight. Anglers fish over sandy substrate in 1-10 feet of water, with deeper organic and marl bottom reaching 50 feet maximum depth. A strong thermocline forms between 29-32 feet, below which oxygen drops to nearly zero, concentrating fish in the upper water column. Limited aquatic vegetation exists mainly on the north end, with scattered reed beds on the south end. The Birch Lake Association has been instrumental in protecting spawning marshes and maintaining water quality. Serns Index surveys show consistent natural walleye reproduction, with 38 Age-0 walleye collected in 2020 indicating a strong year class. The DNR classifies this as a low mesotrophic lake with 11-foot secchi clarity.