Place
- Champaign1
- Chautauqua1
- Chicago1
- Childress1
- Chippewa1
- Clay1
- Clear Creek1
- Colonial Point, west side of Burt Lake1
- Comanche Spring, New Braunfels, etc.1
- Connecticut1
- Coos1
- Court of Natural Science Bldg., Campus.1
- Dearborn.1
- Delta1
- Denali1
- Detroit.1
- Dickinson1
- Dickinson Co., ca. 6 mi. E. of Crystal Falls. M-69.1
- E.S. George Reserve. Grid M-161
- East Dorset (Town of Dorset)1