Cahaba (Alabama)
Cairo (Illinois)
Cajoude Arivaypo (Arizona)
Camp Andy Johnson (Tennessee)
Camp Cadwalader (Pennsylvania)
Camp Cameron (Massachusetts)
Camp Cameron (Pennsylvania)
Camp Chase (Ohio)
Camp Clay (Ohio)
Camp Cleveland (Ohio)
Camp Cooper (Florida)
Camp Creek (Mississippi)
Camp Curtin (Pennsylvania)
Camp Dick Robinson (Kentucky)
Camp Douglas (Illinois)
Camp Finegan (Florida)
Camp Gonzales (Florida)
Camp Joe Holt (Indiana)
Camp Milton (Florida)
Camp Moore (Mississippi)
Camp Pyatt (West Virginia)
Camp Slough (Virginia)
Camp Wilkins (Pennsylvania)
Camp Wright (Pennsylvania)
Canoe Creek (Florida)
Canton (Mississippi)
Carroll Hill (Maryland)
Caston's Plantation (South Carolina)
Cavalry Canyon (Arizona)
Cedar Creek (Florida)
Cedar Creek (Virginia)
Cedar Keys (Florida)
Cemetery Hill (Pennsylvania)
Central Railroad ()
Champion's Hill (Mississippi)
Chancellorsville (Virginia)
Chandeleur Islands (Louisiana)
Charleston (Mississippi)
Chattahoochee River ()
Chattanooga (Tennessee)
Cherokee (Alabama)
Chesapeake Bay ()
Chewalla (Tennessee)
Chickahominy River ()
Childsburg (Virginia)
Chiricahua Mountains (Arizona)
Choctawhatchee Bay (Florida)
Cotton Creek (Florida)
Cottonwood Creek (Arizona)
Cow Creek Station (Kansas)
Cow Ford Creek (Florida)
Crooked River (Florida)