I'm David O., the breeder behind Endless Mtns Tibetan Mastiffs located in New Milford, PA. Our breeding program focuses on maintaining the unique characteristics specific to the breed while striving to produce puppies of superior health, temperament, and conformation. We are proud of our dogs and their puppies, and it is always our goal to preserve and better the breed with each litter.
Q. & A. with David
Where do your breeding dogs live?
They live in my home and a kennel on my property.
Matched dogs
These dogs are already reserved or have gone home.
Girl 1
Went home
Female
Boy 1
Went home
Male
Boy 2
Went home
Male
Boy 3
Went home
Male
Boy 4
Went home
Male
Boy 5
Went home
Male
Getting a puppy from David
David 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 David to learn more details about pricing.
Contract & health guarantee
David 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 David 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 David directly.
You can drive or fly to pick up your puppy from David.
Breeder’s location
Meet in New Milford, PA
216 miles away
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More about David
David has been a member of Good Dog for almost 3 years
David was screened for responsible practices and has been a member since 2023.
DO
David is a trusted Good Dog breeder
Endless Mtns Tibetan Mastiffs 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
Litter and program updates
DO
David O.
Program update on 21 Nov. •
papa
Parent dogs
Iesha, dad
Tibetan Mastiff
About Iesha
2 years old 80lbs. All black. Kind and sweet; loves bacon. Excelente hips per OFA. Has 11 points in AKC championships.
Major, Jr, dad
Tibetan Mastiff
About Major, Jr
Major, Jr is a male Tibetan Mastiff. Carefully selected as a great representative of his breed, David decided to make him part of their program. David 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.
China, mom
Tibetan Mastiff
About China
China is a female Tibetan Mastiff. Carefully selected as a great representative of her breed, David decided to make her part of their program. David 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.
Parent health testing
Breeder-Reported Testing
Excellent level
Endless Mtns Tibetan Mastiffs 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 Tibetan Mastiffs.
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.
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.
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.