- Between M-28 and the railroad tracks at Watton.1
- Bingham Twp., ca. 3 mi. N. of Ubly.1
- Blue Mountain, Lushai Hills1
- Bohemia Twp., Forest Rd. 499, 2-3/4 mi. E. of Rosseau.1
- Bois Blanc Island, W. of Deer Lake.1
- Boone1
- Bottom of small kettle-hole in northeast portion of Big Woods Grid S-24, George Reserve.1
- Ca. 4 mi. SW of Grand Marais1
- Cabin John1
- Camden1
- Campamento Forestal La Cima Dos; alrededores de la estación La Cima; Serranía del Ajusco1
- Canada1
- Case's Woods1
- Charlotte1
- Chautauqua1
- Chiapas1
- Chimaltitan; 10 mi SE of Calvillo, 3 hours by horse from Rancho de Los Adobes, Sierra del Laurel1
- Chittenden1
- Claybanks Twp., ca. 4 mi. SW of Rothbury.1
- Constantine Twp., ca. 5 mi. NW of Constantine.1