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WELCOME TO THE UNDERGROUND

A Community of Fitness

 

Active w/ Ash Online

Making virtual feel personal

 
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ONSITE AND VIRTUAL

Flexible Options

Onsite Classes: For those local to the Erie, Colorado area, we offer small-group boot camp style classes in an intimate boutique location utilizing: battle ropes, bosu, free weights, booty sprout, TRX, slam balls, the Tank, punching bags and more.

Virtual Classes: Get inspired and workout anywhere with little to no equipment! Our community works out in their living rooms, garages, basements, backyards, hotel rooms, parks, and more. 

Click to learn more:

 
 

Take a Tour

Watch a guided tour of the Fitness Underground by owner and instructor, Ashley Marks.

 

VISIT BOOKING PAGE

Book a class, purchase a membership, and see reviews:

 
 

CONTACT US

416 Polaris Cir
Erie Colorado 80516

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