McGarry Ranches, 6140 W. 5000 S., Rexburg, Idaho, 83440; (866) 593-4455, http://www.mcgarryranches.pa.net. Three ranches in the Snake River Valley and along the Snake River in southeastern Idaho that allow guests to work cattle with ranch cowboys. Rate: $1,245 per person, per week, including riding, meals and bunk.
Tanque Verde Ranch Resort, 14301 E. Speedway, Tucson, Ariz., 85748; (800) 234-3833, http://www.tanqueverderanch.com. Large resort that includes riding in its amenities. Summer rate starts at $195 per night, including meals and activities.