| Wyoming Cattle Boom, 1868-1886 | Encyclopedia | Samuel Western |
| Wyoming Dinosaur Center | Field Trips | |
| Wyoming eclipses | Encyclopedia | Rebecca Hein |
| Wyoming Frontier Prison | Field Trips | |
| Wyoming House for Historic Women, The | Field Trips | |
| Wyoming House of Representatives, Riot of 1913 | Encyclopedia | Gregory Nickerson |
| Wyoming Legislature, Riot of 1913 | Encyclopedia | Gregory Nickerson |
| Wyoming National Guard, Mexican border service, 1916 | Encyclopedia | Carl V. Hallberg |
| Wyoming North and South Railroad | Encyclopedia | Jim Brown |
| Wyoming PBS | Encyclopedia | Doug McInnis |
| Wyoming PBS | Field Trips | |
| Wyoming Pioneer Memorial Museum | Field Trips | |
| Wyoming public television | Encyclopedia | Doug McInnis |
| Wyoming Room, Sheridan County Fulmer Public Library | Field Trips | |
| Wyoming State Archives | Field Trips | |
| Wyoming State Capitol | Field Trips | |
| Wyoming State Capitol, history of | Encyclopedia | Linda Graves Fabian, Starley Talbott |
| Wyoming State Constitution, women’s suffrage provision in | Encyclopedia | Wyoming State Archives |
| Wyoming State Fair | Field Trips | |
| Wyoming State Geological Survey | Field Trips | |
| Wyoming State Hospital | Field Trips | |
| Wyoming State Hospital, the | Encyclopedia | Barbara Allen Bogart |
| Wyoming State Museum | Field Trips | |
| Wyoming Territorial Prison | Field Trips | |
| Wyoming Union | Field Trips | |
| Wyoming Veterans Memorial Museum | Field Trips | |
| Wyoming, origins of name | Encyclopedia | Jim Brown |
| Yellowstone Fires,1988 | Encyclopedia | Dan Whipple |
| Yellowstone Forest Reserve | Encyclopedia | John Clayton |
| Yellowstone National Park | Field Trips | |
| Yellowstone National Park, history of | Encyclopedia | Tamsen Emerson Hert |
| Yellowstone National Park, President Chester A. Arthur trip to, 1883 | Encyclopedia | Dick Blust, Jr. |
| Yellowstone National Park, trails of | Encyclopedia | Robert and Elizabeth Rosenberg |
| Young, Clabe, 1880s rustler | Encyclopedia | Tom Rea |
