- Lake Tp., Sect. 22; former RR. right-of-way from M22 to Lake Michigan1
- Lapeer1
- M.C.R.R. A.A. [= Ann Arbor]1
- Mackinac1
- Manistee1
- Manistee Twp. T22N, R16W, Sec. 31 SW1/4 1/4 mile E. M-31 N. side of M-55 on the E. side of Parkdale ca. 1 mile north of Manistee.1
- Marl Lake near Orion1
- Massachusetts1
- Meghalaya1
- Menomine Co.1
- Mentor Twp. T26N, R3E, Sec. 11 NE1/4 on west side of Weaver Rd. ca. 500 ft north of Co. Rd. 600 ca. 4.5 mi west of McKinley.1
- Metamora Tp.1
- Mexico1
- Michigan Department of Natural Resources Houghton Lake Wildlife Research Area (Porter Ranch) ca. 6 km. sw of Houghton Lake1
- Mississippi1
- Mobile1
- Montcalm1
- Muskegon1
- NE. corner, jct. of Albain & Jackman Rds., SW1/4, Sect. 3, Ida Twp.,1
- NW 1/4 sec. 32, T26N, R6E, ca 3 mi NW of Glennie.1