In History of Wyoming, T.A. Larson writes that roller skating rinks operated in Wyoming cities in the 1880s. They were popular with adults as well as youngsters, and in the eastern U.S. as well. I suppose most rinks in Wyoming had wooden floors, the same as most sidewalks of the 1880s.
Wyoming has cold winters, but the plains have few ponds for ice skating. Indoor roller skating rinks provided fun all winter long. Imagine — cowboys roller skating on their trips to town.