Earth Treks' Climbing Center is the premier indoor climbing gym in the Baltimore-Washington area. Earth Treks is a state-of-the-art and is among the largest climbing facilities in the country. Over 16,000 square feet of climbing walls with climbing for all ability levels, from fun beginner climbs to fiercely technical sport climbs. Over 150 climbs on varied terrain: from 23 ft. tall slabs to 50 ft. overhangs. Competition-quality bouldering caves are also available. The Center has a ProShop, showers and lockers, fitness equipment and strength training machines. There are three Earth Trek locations (Timonium, Columbia or Rockville, Maryland) where you can use your four passes for a full day of climbing or you can exercise on the many different cardio fitness machines.