Nye's Trap Range, Kingsley (near Traverse City) every Sunday. They start their Winter League on Jan 4, but non league shooters are welcome. It's a fun league, good people, excellent food, challenging targets. 16's and all the way back to the 25.
Grayling Sportsmans Club has a winter league begining the first Saturday in January and running through (I think) the middle of March. 500 singles shoot at your pleasure, just get them all in by the last shoot day. Great Targets and people. The food and prizes are also very nice.
Wayne County Sportsman's Club in Huron Township has a winter "friendship" league for trap and 22 yd handicap running. Shoot whenever the club is open; just get in the required number of rounds before the league ends. We call it friendship because it is a good way to make new shooting friends.
See our website, http://www.waynecountysportsmansclub.com/, for directions.
Canvasback Gun Club 3801 West Dunbar Road Monroe Michigan 48161
Calcuttas / steak roast every first Monday of the month. Winter league starts January 7th open to the public open shoots every Wednesday evening and Sundays. Sporting Clay events monthly