A Dream


Where horses go to feel their absolute best.


We are proud to offer products that we have tried, tested and truly believe in.


Comprehensive resources and expertise for horse owners.

Over a Decade of


After 10 years in the business, we are committed more than ever to catering to you and your horse and prioritizing longevity.

We take pride in designing unique and specific programs to benefit each horse individually, every time they come to visit us. We strive to curate products with real functions we can attest to. And we continue to give back to the community with a library of resources.



Whether it’s for relaxation and rehabilitation of those on the mend, or to strengthen and condition for exceptional performance, we cater to you and your horse.

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Galozyme Equine Sport Flair Strips | 6 Pack Coulee Equine Ration Equinety Horse XL Rambo Protector Fly Sheet



Our store is dedicated to equine care. We are proud to offer products that we have tried, tested and truly believe in. Each and every one has a function we can't wait to tell you about.

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Dedicated to providing horse owners with comprehensive resources and expertise that eliminate stress and guesswork when it comes to conditioning, sports medicine, rehab and nutrition for performance horses.

Coming Soon!


For over a decade, Katie has been studying equine sports therapy. Her technical training in massage and osteopathy gives her an edge to help your horse achieve the best possible flexibility and mobility that is needed for it to perform to the best of their ability.  Combine this with the utmost in conditioning and rehab, there simply is no more capable hands then Katie’s. With her expertise and passion for the equine performance industry, it was her dream to create Coulee and she continues to grow and advance it every year.

Katie loves what she does and works very hard at it, day in and day out, to make sure everything is taken care of.


Many of you will recognize Kashley Seitz as the voice on the other side of the phone or the friendly face checking your horse in upon arrival. Kashley grew up in southern Alberta with an extreme passion for horse’s, rodeoing from a young age and competing at the highest levels. After high school, she attended Texas Tech University where she obtained a Bachelor’s Degree in Animal Science with a focus in Equine Nutrition.

Kashley started working at Coulee in the winter of 2021 and has been a vital part of the day to day operations ever since.

Don't take our word for it


Coulee has been a staple in our program for over 6 years. Every time we take a horse to Coulee they always come back feeling better than when we left them. The care our horses receive is second to none and the knowledge that Katie and Kashley share is extremely beneficial.

Keely Bonnett & Shelby Spielman

Coulee plays a pivotal role for all of my horses! Katie, Kashley, and the entire Coulee team’s commitment and knowledge to the horses is so appreciated, and they always go above and beyond. I leave knowing my horses are getting the absolute best care. 

The store has become my one stop shop for all my horses needs, from supplements to flair strips, they have all my horses essentials covered!

Jordyn Tresidder

A performance horse isn’t just about training and pedigrees. While important, we like to incorporate fitness, nutrition and mental health into our health programs for the athletes in training here at Reinhardt Cutting Horses. Katie imparts her knowledge on conditioning and nutrition programs to get the horses started off right before a hectic show season, or rehabilitating when injuries do occur. The Coulee team works well with our other professionals like CorVet Services, to ensure the horses are monitored and working at THEIR best abilities while gaining core strength and fitness to continue on in our training. We utilize the Coulee ration at home, feeding it from 2 year olds to broodmares, keeping weight on without making them “hot”. During the heavy spring and fall runs, the equiscope and salt spa help speed up recovery and reduce inflammation that comes with heavy performance demands. Katie and her team at Coulee always go above and beyond to accommodate us and we appreciate that it’s never cookie cutter. They deliver solid service with sound knowledge and we can’t thank them enough!

Reinhardt Cutting Horses

Los Angeles, CA