We Are Now ProjectFit

Our Brand Of Functional Fitness Classes For Everyone.

“Fitness For Life”

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We Help People Like You Get In Shape & Stay In Shape!

Do You Want Look & Feel Better?

Do You Want The Small Town Feel?

Do You Want Committed Coaches & Friendly Members?

Mountain CrossFit Is Your Answer!

Get In Shape

We Help Make It Fun & Motivating


With Our 6 Wk Meal Plan.


CrossFit Prepares You For Life!

Mountain CrossFit Celabrates 10 Years

Have You:

Had Trouble Losing Weight?

Struggled With Long Term Success?

Hated Where You Worked Out?

Had Enough Of The “Health Club Clicks”?

You Need To Try Mountain CrossFit!

Got Questions? We Have The Answers laughing

Experience ProjectFit For One Week!


The Best Way To Learn More About Us And CrossFit Is To Get In And Start Training.

Fill the form out below and we help you get started!


We Make It Easy With A Great Community Of Like Mind Members.

Don't Wait For Tommorrow

Make A Change Today! We Make Fitness Do-Able For Everyone! RMSDF Is A Small Community Gym Focused On It’s Members, With Coaches Focused On You.

Weight Lifting


The Perfect Class If You Want To Increase Your Strength.

Be Stronger In Crossfit Wods

Be Stronger In The Fight

Doctors Always Recommend Strength Training As We Age.



We Have Several Membership Options To Fit Your Needs.

Here Are Three Popular Options.

Contact Us To Learn More About Our Memberships & Family Discounts

Message Us For More Membership Options And Monthly Promotions.

Reach Us

Castle Rock

780 Kinner St,
Castle Rock, Co. 80109

Meridian Village / Lone Tree

11800 Oswego St,
Englewood, Co. 80112


Use The Form Below Or The Info Under REACH US to Email, Text or Call Us

 Let’s Book Your First Class TODAY!

ProjectFit WOD | Workout Of The Day

Mt. CrossFIt Castle Rock Colorado. We have workouts for every fitness level don’t let our daily Wod “Scare You.” We offer 4 daily Workouts depending on your current fitness level. Below Is the level 5 wod or Crossfit Rx’d Wod.

This Will Be The Hardest Version Of The WOD

ProjectFit Is:

Constantly Varied, Functional Movements, Executed at High Intensity. Scale-able to your abilities. Our fitness classes are easy to get started in.

At RMSDF.com in Castle Rock, Co. We don’t care about being the biggest gym in the area, nor do we care how well we did in a competition. Our number one goal is our member’s successes. Whether its a first pull up in 30 years, losing 30 lbs, a 400lb deadlift. We strive to be a little better than the day before.

Out ProjectFit fitness class will help you drop FAT FAST!
Our Coaches will help you get started
NO MATTER your fitness level.

We Will Help You

 Lose Weight

Have Long-Term Success

Build Muscle

Lose Weight

Create Meals Plans



More Info Coming Soon!

Reach Us

Castle Rock

780 Kinner St,
Castle Rock, Co. 80109

Meridian Village / Lone Tree

11800 Oswego St,
Englewood, Co. 80112

Message Us Below