
I'm Theresa K., the breeder behind Pearl Ranch AKC Collies located in Colorado. Our high-quality puppies are the result of extensive research and thorough care for our outstanding dogs and puppies. We are dedicated to raising the bar for thoughtful breeding with optimal health in mind. We do our best to produce puppies that have the best chance at living long, happy, and healthy lives as your best friend!


Theresa has been certified by Good Dog’s screening team for responsible and trusted breeding practices. When you’re ready, reach out to ask about the puppies or anything else on your mind. You’ll get to know each other through messaging, phone, or video and pay securely, all on Good Dog.
Together, you’ll choose the puppy that’s right for you, stay in touch with regular updates, and plan how to bring your new puppy home.

Theresa may provide a written contract or health guarantee when you purchase a puppy. This helps protect both you and your breeder, ensuring that you both have a clear understanding of the terms of your puppy purchase. If Theresa offers a contract or guarantee, the details will be personalized by them. If you have any questions or want to know more, don't hesitate to reach out to Theresa directly.
When you pay and communicate on Good Dog, you’re covered by Payment Protection.
You can drive or fly to pick up your puppy from Theresa.
Meet in Colorado
1508 miles away
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Theresa has been a member of Good Dog for about 2 years
Theresa was screened for responsible practices and has been a member since 2024.

Pearl Ranch AKC Collies meets or exceeds our community standards in these areas:
Excellent level
Pearl Ranch AKC Collies reports to performing the health tests below on their breeding dogs. Ask your breeder about the tests performed on the parents of your litter. Learn more about health testing for Collies.
Multiple Drug Sensitivity (MDR1), PRA, Rod-Cone Dysplasia 2 (rcd2), Dermatomyositis, DNA Disease Panel
Genetic testing reduces the chance of passing down a wide variety of hereditary diseases of differing prevalence and severity such as Progressive Retinal Atrophy (an eye disease) and Von Willebrand's Disease (a blood disease).