| Title | Author |
|---|---|
| Coolidge, Sherman | Tadeusz Lewandowski |
| Cooper House | |
| Corum, Alfred, pioneer grave of | Randy Brown |
| Cottonwood Creek Dinosaur Trail | |
| Cowley Pioneer Museum | |
| Craig Thomas Discovery and Visitor Center | |
| Crane, Arthur | Wyoming State Archives |
| Crane, Arthur, welcome of to UW campus, 1922 | Phil Roberts |
| Crimson Dawn Park & Museum | |
| Crook County Museum and Art Gallery |