Prairie Wind Ranch
- Standing How D Royal at stud. Halter and performance prospects for sale. Located in Peyton.
- http://home.pcisys.net/~munsons/

Winslow Quarter Horses
- Breed foundation bloodlines. Includes list of horses for sale and contact information. Located in Estes Park.
- http://www.winslowquarterhorses.com

Diamond Double T Ranch
- Standing blue roan stallion at stud. Includes sales list, photos, and profiles of horses. Located in Longmont.
- http://diamonddoubletranch.com

Buckskin Horses
- Standing grulla and dun stallions at stud. Includes sales list, photos, and profiles of horses. Located in Pennrose.
- http://www.beavercreekbuckskins.com

Premier Breeding Services
- Standing gray, bay, sorrel, bay overo, sorrel tobiano, gray overo, thoroughbred, and arabian stallions at stud. Includes sales list, photos and profiles of horses. Contains article on reproductive management techniques. Offers boarding. Located in Sed
- http://www.premierbreedingservices.com

Circle Bar 5A Ranch
- Includes sales list, photos, and profiles of horses. Located in Colorado Springs.
- http://www.circlebar5a.com

7 Hanging 7 Ranch
- Standing chestnut stallion at stud. Includes sales list, photos, and profiles of horses. Offers Shetland Sheepdog puppies for sale. Located in Ellicott.
- http://www.versatilityranchhorses.com

Ettleman Quarter Horses
- Includes sales list, photos, and profiles of horses. Located in Longmont.
- http://ultimatehorsesites.com/eqh/

Howard Quarter Horse Ranch
- Includes sales list, photos, and profiles of horses. Offers Miniature Australian Shepherd puppies for sale. Located in Alamosa.
- http://www.howardquarterhorseranch.com

Garcia Performance Horses
- Standing sorrel, red roan, blue roan, gray, dun, and brown tobiano stallions at stud. Includes sales lists, photos, and profiles of horses. Offers registered and commercial Corriente cattle for sale. Located in Manassa.
- http://www.garciaranches.com

Goldun Quarter Horses
- Includes sales list and photos and profiles of stallion and foals. Located in Golden.
- http://goldun.com/

Silver Dollar Quarter Horses
- Selling foundation-bred horses and handmade training equipment. Located in Grand Junction.
- http://www.silverdollarqh.com/

Colorado Quarter Horse Ranch
- Standing two foundation-bred stallions and horse for sale. Stock photographs and details. Located in Montrose.
- http://coloradoquarterhorse.com/

Chisum Quarter Horses
- Offers photos of horses and includes horses for sale. Located in Parachute.
- http://chisumquarterhorses.com/

Alamosa Quarter Horse Farms
- Offers Wiescamp bred horses and provides stud services. Includes list of horses for sale. Located in South Alamosa.
- http://www.alamosaquarterhorsefarms.com/