Earth Treks was established in 1990 by mountaineer Chris Warner as an international guide service and climbing school. Chris opened his first indoor climbing gym in 1997, in Columbia, Maryland. Today, Earth Treks is one of the nation's largest climbing gym operators with facilities in three states. Earth Treks gyms feature sculpted climbing walls with bouldering, top-roping and lead climbing, as well as amenities like yoga studios, functional fitness and cardio zones, and retail pro-shops. Earth Treks gyms cater to participants of all abilities – from elite, competitive athletes to new entrants to the sport, including families and kids.