Dude Ranchers' Association
   Promotes dude ranch vacations for over 100 dude ranch members.
   http://www.duderanch.org

Gordon's Guide Horseback Adventures
   Listing of vacations including wild mustang observation, trail rides, and cattle drives. Location-based search available.
   http://www.horsebackadventures.com/

Horse Rentals
   Locate some great trail riding or horseback riding stables in your area. Dude ranches guest ranches. Horse rentals for an hour or week.
   http://www.horserentals.com

Horse Travels
   Information on traveling with horses and trail riding, including a newsletter, personal travel guides, and reviews.
   http://www.horsetravels.com

HorseTrip
   Overnight stabling directory providing facilities for travelers with horses near interstates and major highways in United States.
   http://www.horsetrip.com/

Southwest Equestrian Trails
   Information about horseback trail rides in Utah and Arizona, and scenic tours of the Southwest desert. Does not offer guided tours.
   http://users.lvcm.com/trails/