A team that knows your horse
Our staff averages over 10 years with the practice. That continuity means your horse is always seen by someone who knows its history. Horses aren't our job from 9 to 5. They are our life!

Dr. John Marion
Doctor of Veterinary Medicine
Dr. Marion began his career in the veterinary profession in 1986 as a veterinary assistant, working through college at the prestigious Oakland Equine Center. He graduated from Michigan State University's College of Veterinary Medicine in 1997, practiced in Monument, Colorado for 5 years, then took over Castlewood Canyon Equine in 2002.
In addition to Colorado, Dr. Marion has practiced in Lexington KY, Australia, and England. He has trained with some of the world's leading equine dental experts, building Castlewood Canyon Equine into one of the leading sources of advanced equine dental care in Colorado.
In his spare time, he enjoys riding with his son and daughter, both accomplished horsemen, and wife, a certified dressage and therapeutic riding instructor. If there's an equestrian sport out there, our family has probably done it — from roping to dressage, jumping to mounted archery to driving. Horses are our life!
Lindsay D'Angelo
Veterinary Technician
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Grays & Torrey
Clinic Cats
While Grays and Torrey were originally feral kittens hired to help with rodent control in the barn, their innate computer and office managerial skills quickly resulted in a promotion to office cats. Besides, after Lindsay got them kind of domesticated, we were worried they might get eaten by our local bald eagle. They also decided the office was a lot more comfy than being in a cold barn.

Grays
Clinic Cat
Our resident scaredy cat. Grays likes to keep his feral roots alive by being afraid of most things. He would like to take long walks on the beach and practice Salsa dancing, but usually he's hiding on the bookshelf or under the sink.

Torrey
Clinic Cat
While Torrey is Grays' sister, she shares none of his fears. She would like to spend her spare time rock climbing Shepherd's Crag in the Lake District of England, swimming with crocodiles in Kakadu National Park, or hang gliding in the Remarkables Mountains in New Zealand. If only someone would get her a passport and leave the door open a crack.