WELCOME TO THE UNDERGROUND
A Community of Fitness
Active w/ Ash Online
Making virtual feel personal
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:
