The trip in short
From Denver into cowboy country: Cheyenne, the rodeo capital, and three nights at a dude ranch in the Bighorn Mountains near Sheridan, riding every day. Cody has a rodeo every summer night and the Buffalo Bill Center of the West. You enter Yellowstone from the east, past Yellowstone Lake to Canyon, and end on horseback in Grand Teton at Jackson. The summer one among the horse riding trips; in winter: dude ranches in Arizona.