Yes, they CAN be found in Michigan, and yes, they're venomous.

Doug Hemgesberg was getting ready to have a fire and roast marshmallows with his kids over the weekend when he was bitten by a Massasauga. It's Michigan's only venomous rattlesnake.

Massasauga are usually native to northern wetlands in the lower peninsula, but they're not common in the Flint area. Anti-venom had to be flown in via helicopter from Ann Arbor, and police caught the snake - Hemgesberg didn't want the snake killed.

Bless his heart, because I don't know if I would've been that kind to the snake if it happened to ME.