Place
- Mobile1
- Mono1
- Monroe1
- Montcalm1
- Montgomery1
- Morris1
- Murray1
- Muskegon River Basin, south of Muskegon River.1
- N of Baldwin.1
- N. side of Hickory Nut Gorge, on US Rt. 74, 2 mi. w of Bat Cave.1
- Napa1
- Naperville.1
- Near E. bank of South Brach, Au Sable River, ca. 7 mi. NE of Roscommon.1
- Near W. side of Howe's Lake, ca. 5.5 mi. NW of Grayling.1
- Nevada1
- New Hanover1
- Newaygo1
- Newfoundland & Labrador1
- North Fox Island.1
- Northwest Arctic1