| CallAir Museum | |
| Cambria Casino/Flying V Lodge | |
| Camp Douglas Officers’ Club State Historic Site | |
| Camp Monaco | John Clayton |
| Camp Monaco | |
| Campbell County Rockpile Museum | |
| Campbell County, Wyoming | Rebecca Hein |
| Campbell, John | Wyoming State Archives |
| Campbell, John, first territorial governor of Wyoming | Tom Rea |
| Campfield, Mathew, barber and Natrona County coroner | Tom Rea |
| Canary, Martha Jane | Rebecca Hein |
| Cantonment Reno | |
| Cantonment Reno | Lori Van Pelt, WyomingHeritage.org |
| Cantrell, Ed | Paul Krza |
| Canyon Springs Stage Station marker | |
| Capitol, Wyoming State | Linda Graves Fabian, Starley Talbott |
| Carbon Cemetery | |
| Carbon Cemetery | Stephanie Lowe |
| Carbon County Museum | |
| Carbon County, Wyoming | Lori Van Pelt |
| Carbon, Wyoming | WyoHistory.org |
| Carbon, Wyoming | |
| Carey, Joseph | Wyoming State Archives |
| Carey, Robert | Wyoming State Archives |
| Carlisle, Bill | Lori Van Pelt |
| Carriage House Theatre | |
| Carson, Kit, in Wyoming and the West | Tom Rea |
| Casper Army Air Base Murals | Eric Wimmer |
| Casper Army Air Base, history of | John Goss |
| Casper Civic Symphony | Rebecca Hein |
| Casper College Western History Center | |
| Casper Mountain, skiing on | Rebecca A. Hunt, Ph.D. |
| Casper Odd Fellows Building | |
| Casper Star-Tribune, Northern Utilities and | Kerry Drake |
| Casper, Wyoming | Rebecca A. Hunt, Ph.D. |
| Casper’s Sandbar District | |
