Previously known as the Wichita Falls Rustlers (and before this, the Butte Irish of Butte, Montana and the Vail Avalanche of Vail, Colorado), the franchise was a part of the American Frontier/America West Hockey League prior to 2003, and became an NAHL team after the two leagues merged for the 2003–04 season. The Irish, Rustlers, and Wildcats are technically three separate franchises, but with a major overlap of players and coaches between the organizations, they are often listed together as one.