Waterloo Mountain Farm
- Cotopaxi, CO
- Responds within a day
Meet the breeder
I'm Mariz R., the breeder behind Waterloo Mountain Farm located in Cotopaxi, CO. Waterloo Mountain Farm is a small homestead in Cotopaxi, Colorado, where we raise Colorado Mountain Dogs in a working environment alongside livestock. Our program focuses on producing reliable guardians through thoughtful breeding focused on health and temperament, and intentional early raising.
Q. & A. with Mariz
Why did you start breeding?
I didn’t set out to become a breeder. As we began raising livestock, it quickly became clear that fencing alone was inadequate and we needed reliable livestock guardian dogs. That led me down the path of learning about the Colorado Mountain Dog, and I became interested in contributing to a program that prioritizes stable, people-friendly guardians that actually fit modern homesteads.What makes your program special?
Our dogs are raised and evaluated in a real working environment which allows us to select for dogs that are not just theoretically sound, but actually suited to the kinds of properties most people have. As a small program, we produce limited litters and take a hands-on approach to raising puppies, focusing on early socialization, and setting both dogs and owners up for long-term success.What are the different breed coat colors in your program?
Our puppies include tan and white. Colors will vary depending on the parent dogs.Where do your breeding dogs live?
They live in my home.
Matched dogs
These dogs are already reserved or have gone home.
Challah
Went homeFemale
Oat
Went homeMale
Brioche
Went homeFemale
Rye
Went homeMale
Pumpernickel
Went homeFemale
Kolache
Went homeFemale
Barley
Went homeMale
Emmer
Went homeMale
Getting a puppy from Mariz
Mariz 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.
Mariz partners with buyers to find the best match as the puppies develop and their personalities take shape. Typically, matches are finalized when the puppies reach about 7 weeks old.
“We match puppies based on temperament, not just appearance. By observing each puppy as they develop, we pair them with homes that best fit their personality, working drive, and environment to set both the dog and owner up for success.”
Price
“This price includes registration with the Colorado Mountain Dog Registry, deworming, first round of vaccines, and vet checkup. Deposits are non-refundable if the buyer chooses not to proceed with the purchase. However, if the specific puppy reserved by the deposit is placed in another approved home, the deposit may be refunded at the breeder’s discretion.”
Contract & health guarantee
Mariz 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 Mariz 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 Mariz directly.
You’re protected
on Good Dog
When you pay and communicate on Good Dog, you’re covered by Payment Protection.
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
Enrichment & socialization
- Various sounds
- Car rides
- Surface & tactile stimulation
- Socialized with children
- Socialized in new places
- Scent introduction
- Daily handling
- Socialized with other dogs
- Introduced to people of different ages and appearances
- Socialized with other animals
Puppy health practices
- Vet check
- First round of shots and deworming
- Vet records
Extras
- Blanket with mom & littermates’ scent
- Basic obedience & manners
- Food & treats
- Initial potty training
Location & pick-up
You can drive or fly to pick up your puppy from Mariz.
Breeder's location
Meet in Cotopaxi, CO
Other pick-up locations
Meet at City of Colorado Springs Airport
Meet in Colorado Springs, CO
More about Mariz
Club memberships
Mariz is a member of Colorado Mountain Dog Registry.
Mariz has been a member of Good Dog for 2 months
Mariz was screened for responsible practices and has been a member since 2026.
Mariz is a trusted Good Dog breeder
Waterloo Mountain Farm 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 dogs
Babka, mom
Colorado Mountain Dog
About Babka
Intelligent, perceptive, and highly biddable. She is our ‘stickiest’ and most affectionate dog, and will be the first to alert when something is ‘off’, whether that’s escaped stock, injured animals, or even an open gate. A G2 from Rusty Horse Ranch (OUM) with fully outcrossed genetics (i.e. completely unrelated to Caspian, the founding stud), she is 27 inches at the shoulder and clean legged.
Crockett, dad
Colorado Mountain Dog
About Crockett
Our stalwart and fearless guardian. Cool as a cucumber, completely devoted to his work, and very handler sensitive. Does not test fences and will not let even an open gate tempt him away from his guardianship. A G2 from Iron Jay Ranch (IJR) with classic Caspian genetics. 29.5 inches at the shoulder with double dewclaws on one leg.
Great health testing
DNA Disease Panel.
Parent health testing
Great level
Waterloo Mountain Farm 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 Colorado Mountain Dogs.
Vet Wellness Exam
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
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).
