



I'm Cynde G., the breeder behind Thunder River Austrailian Shepherds located in Prescott Valley, AZ. We believe in the versatility of this amazing breed, so we participate in Conformation (national level), Herding, Agility, Rally, and more with our dogs. Sage has qualified in the Most Versatile Aussie Competition at the ASCA Nationals two years in a row.

Where do your breeding dogs live?

These dogs are already reserved or have gone home.

Siodh Linn
Female

Rory
Male

Ian
Male

Siobhan
Female

Aiden
Male
Cynde 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.

“If you commit to a puppy, we require a non-refundable deposit. We do not take deposits until we know what puppies we have available.”
Cynde 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 Cynde 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 Cynde 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 Cynde.
Meet in Prescott Valley, AZ
1934 miles away
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Meet at Phoenix Sky Harbor Airport
1951 miles away
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Cynde has been a member of Good Dog for almost 3 years
Cynde was screened for responsible practices and has been a member since 2023.

Thunder River Austrailian Shepherds meets or exceeds our community standards in these areas:

Australian Shepherd
About Katie
Katie is a female Australian Shepherd. Carefully selected as a great representative of her breed, Cynde decided to make her part of their program. Cynde has passed Good Dog’s screening process, which involved a review of their breeding practices, environment, and the mental and physical health of their dogs.
Excellent level
Thunder River Austrailian Shepherds 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 Australian Shepherds.
Hip Dysplasia
Hip testing reduces the chance of passing down hip dysplasia, which is primarily found in large breed dogs and can cause hip pain and the eventual loss of the function of the hip joint.
Elbow Dysplasia Finals (OFA, BVA, SV, FCI)
Elbow testing reduces the chance of passing down elbow dysplasia, which is primarily found in large breed dogs and can cause arthritis in the elbow joint and front leg lameness.
Eye Certification (CAER, registered with OFA)
Eye testing reduces the chance of passing down a wide range of hereditary eye illnesses including retinal dysplasia, lens luxation, and glaucoma, which can cause impared vision or blindness.
Cardiac Evaluation (rDVM, not registered with OFA)
Heart testing reduces the chance of passing down congenital heart disease, which can cause a range of symptoms ranging from trouble exercising to heart failure.
Brucellosis
A breeder may perform additional tests on their dogs that do not fall into these general categories. These tests may be more uncommon or very specific to a particular breed.
DNA Disease Panel, Multiple Drug Sensitivity (MDR1)
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).