The 7th Annual Cheyenne Celtic Festival will be held July 22-24.
Headliners Fri July 22. Seven Nations
                     Sat July 23  Potcheen

Cheyenne's Celtic Musical Arts Festival | Cheyenne Depot Museum
http://www.cheyennedepotmuseum.org/plaza...

The Cheyenne Depot Museum is housed in the newly renovated Union Pacific Depot in downtown Cheyenne. The museum tells the story about the establishment of Cheyenne during the construction of the Transcontinental Railroad