- Houghton1
- Huron1
- Isle Royale Nat'l Park, Mc Cargo Cove, along trail to Minong Mine.1
- Kyelang, Lahul1
- Lahaul and Spiti1
- Leelanau1
- Les Chen. Isl'ds [Les Cheneaux]1
- Les Cheneaux Is. Lake Huron.1
- Mackinac [Island]1
- Magician Beach1
- Manistee NF, Branch twp., Section 71
- Manitoulin Island, Tamarack Cove1
- Maple Ridge Twp. T32N, R7E, Sec.33 NW1/4; 7 mi. N.W. of Alpena on Long Rapids Road at Mayo Corners.1
- Marquette1
- Mason1
- Middle Island1
- Mizoram1
- Montmorency1
- Near Port Huron1
- Near mouth of Sucker Creek, north end of Sturgeon Bay (Sec. 32, R5W, T39N)1