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CrossFit in Buena Vista, CO

Our mission is to help you succeed.

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About

CrossFit Thin Air

About Us

CrossFit Thin Air is where fitness meets community, growth, and lifelong health. Our experienced coaches guide you through fun, effective workouts designed for every level. Here, you’ll find a welcoming environment and a team dedicated to supporting, guiding, and empowering you every step of the way. We believe in more than just fitness—we believe in building strength, confidence, and habits that last a lifetime.

Community

CrossFit Thin Air is more than just a gym; we are a thriving hub of activity within Buena Vista and beyond. Through impactful partnerships, engaging events, and wellness initiatives, we strive to promote holistic health and well-being in everything we do. Our community extends far beyond the walls of our gym, fostering connections and making a positive impact on the lives of individuals. Join us in creating a supportive and inspiring environment where everyone can thrive and grow together.

Top Programs

At CrossFit Thin Air, we offer a range of standout programs designed to deliver transformative results and cater to a variety of fitness goals. From our signature CrossFit classes to specialized programs like Legends and Personal Training sessions, we provide a diverse array of offerings to meet your unique needs. Our programs are known for their effectiveness, innovation, and unwavering commitment to providing unparalleled fitness experiences. Come discover what sets CrossFit Thin Air apart and join us on a journey to elevate your fitness.

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Our Coaches

Our coaches lead with care, accountability, and excellence. We believe great coaching is about more than writing workouts or counting reps — it’s about knowing our members, supporting their goals, holding a high standard, and creating an experience that helps people grow. We’re here to make each class feel personal, encouraging, and purposeful, while helping every member build confidence, consistency, and long-term health.

Adam Fuller

Adam Fuller

Head Coach/Owner
CrossFit Level 4 Coach

Julia Fuller

Julia Fuller

CrossFit Level 2 Trainer

Ashley Davis

Ashley Davis

CrossFit Level 2 Trainer

Brooke Wilhoit

Brooke Wilhoit

CrossFit Level 1 Trainer

Adrienne Seward

Adrienne Seward

CrossFit Level 1 Trainer
Doctor of Physical Therapy

Zach Yellen

Zach Yellen

CrossFit Level 1 Trainer

CrossFit Thin Air

Train Here / Play There

At CrossFit Thin Air, we believe the work you do in the gym should make life outside the gym better. Train Here / Play There is our reminder that fitness is not just about workouts, numbers, or chasing the next PR — it is about being ready for the things you love most.

Whether that means hiking a fourteener, skiing with friends, chasing your kids, riding trails, paddling the river, or simply having the energy to fully enjoy everyday life, we train with purpose.

We build strength, endurance, confidence, and resilience here so you can go play out there.

Start Your Transformation Today

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Located right on highway 24 in Buena Vista, Colorado, our gym is easy to access and has plenty of parking.

Working out at the gym isn't easy. But getting there shouldn't be hard. CrossFit Thin Air is located and easily accessible from all of Buena Vista.

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Come visit us

545 1/2 Hwy 24 N,
Buena Vista, Colorado
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Buena Vista