Join The Community -  $0 Initiation Fee!

Become an Earth Treks Hampden Member before July 15 and pay no initiation fee - visit our front desk for details.

We're Open!

Currently offering 50% off First-Time Climb Class.  Use promo code: Climb50.

Tour The Gym

When you’re starting a new adventure, you’re sure to have lots of questions.


Hours + Information

Union Collective
1700 W 41st Street
Baltimore, MD 21211

(410) 759-8330

Monday - Friday: 6am-11pm
Saturday: 8am-8pm
Sunday: 8am-6pm


  • Brand new, state of the art bouldering gym
  • 22,500 square feet of climbing and fitness
  • Hydraulic campus boards, system boards and additional training essentials
  • Strength & cardio fitness area
  • Group fitness classes
  • Yoga studio
  • Fully stocked gear shop

First time? Check out our First Time FAQs before you go!

One Month

$110 for 30 days

Individual Membership



Individual Membership


Family Membership
(first two family members, $20 for each additional)

  • Easy month-to-month payment plan. Cancel anytime!
  • $59 initiation fee
  • Military Discount - 50% off initiation fee (active duty with ID)

Membership Benefits

Membership Includes Access to All Locations
  • Unlimited climbing
  • Free clinics
  • Free yoga
  • Free guest passes
  • Free access to monthly Rendezvous events
  • Discounts on indoor and outdoor classes
  • Discounts on gear and apparel
Membership questions + changes

Membership FAQ's


Day Pass: $22

7-Visit Pass $130

New? Try First-Time Climb

* Military Discount - 10% off day pass (active duty military with ID)

Rental Gear

Climbing Shoes $6

Chalk Bag $2

Try A First-Time Climb


From novices to old pros, you control your climbing journey at Earth Treks. Classes include everything from First-Time Climb to Introduction to Bouldering and Boost Your Bouldering.

Learn More



Rock or ice? Novice or advanced? It doesn't matter. Let's go play outside!

Rock Climbing

Ice Climbing



Get your fitness on in a variety of drop-in classes or go at your own pace in the weight room and cardio zone. Free for members!

Learn More



Strengthen, unwind and restore with one of our yoga classes. Free for members!

Learn More


Personal training

Whether your goal is to strengthen your climbing skills or just get into the gym more often, we’ll motivate you to reach your fitness goals. All skill levels are welcome!

Learn More

Earth Treks Hampden Calendar

Join the Earth Treks Community

When you’re starting a new adventure, you’re sure to have lots of questions.
Let us answer them while showing you around your Earth Treks gym.

Book a tour

Questions? 800-CLIMB-UP