Sandcastle Shelties

CM

Cathy M.

Breeder of Shetland Sheepdogs

Meet the breeder

I'm Cathy M., the breeder behind Sandcastle Shelties located in Tucson, AZ. All of our puppies are bred, raised, and loved indoors to produce happy, healthy pets for those seeking the best family companion! We are dedicated to always providing our buyers and our puppies with a positive experience, which includes remaining committed to responsible practices when it comes to breeding, training, and rehoming our puppies.

Q. & A. with Cathy

  • Where do your breeding dogs live?

    They live in my home.

Getting a puppy from Cathy

Cathy has been certified by Good Dog’s screening team for responsible and trusted breeding practices. When you’re ready to reach out, feel free to ask any questions about the breed, their program, or specific puppies.

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.

Price

Connect with Cathy to learn more details about pricing.

Contract & health guarantee

Cathy 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 Cathy 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 Cathy directly.

Always communicate and pay on Good Dog.Learn more

What’s included

    • From Good Dog
      • Lifetime support from Good Dog’s Care Team
      • 10% lifetime discount on Figo pet insurance
      • Puppy Training Program & private community
    • Puppy health practices
      • Vet check
      • First round of shots and deworming

Location & pick-up

You can drive or fly to pick up your puppy from Cathy.

Breeder’s location

Meet in Tucson, AZ

5653 miles away

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Google
Map data ©2025 Google, INEGI
Map data ©2025 Google, INEGI

More about Cathy

  • Club memberships

    Cathy is a member of Mid AZ SSC and American Shetland Sheepdog Association.

  • Certifications & recognitions

    AKC Breeder of Merit.

  • Cathy has been a member of Good Dog for 4 months

    Cathy was screened for responsible practices and has been a member since 2025.

  • Cathy’s links

CM
Cathy is a trusted Good Dog breeder

Sandcastle Shelties meets or exceeds our community standards in these areas:

  • Responsible breeding practices
  • Health of breeding dogs and puppies
  • Puppy environment and enrichment
  • Buyer education and policies

Parent health testing

Breeder-Reported Testing

Good level

Sandcastle Shelties 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 Shetland Sheepdogs.

  • Hip Dysplasia (rDVM, not registered), 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 (rDVM, not registered), 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 Examination (rDVM, not 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.

  • Thyroid (Autoimmune Thyroiditis, registered with OFA)

    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, von Willebrand Disease III (vWD III), Dermatomyositis, Collie Eye Anomaly (CEA), 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).