| Title | Author |
|---|---|
| Wyoming State Museum | |
| Wyoming Territorial Prison | |
| Wyoming Union | |
| Wyoming Veterans Memorial Museum | |
| Wyoming, origins of name | Jim Brown |
| Yellowstone Fires,1988 | Dan Whipple |
| Yellowstone Forest Reserve | John Clayton |
| Yellowstone National Park | |
| Yellowstone National Park, history of | Tamsen Emerson Hert |
| Yellowstone National Park, President Chester A. Arthur trip to, 1883 | Dick Blust, Jr. |
| Yellowstone National Park, trails of | Robert G. and Elizabeth L. Rosenberg |
| Young, Clabe, 1880s rustler | Tom Rea |