1. Rock River Township Main Number
E3667 State Highway M94, Chatham, MI 49816
Coordinate: 46.294823,-86.758934
Phone: (906) 439-5360
2. Limestone Township Hall
N3010 State Highway M67, Chatham, MI 49816
Coordinate: 46.26445,-86.92826
Phone: (906) 439-5555