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American Trail Running Association (ATRA)

American Trail Running Association (ATRA)

The American Trail Running Association (ATRA) was formed in 1996 as a Colorado not-for-profit 501 (c ) 3 corporation. ATRA’s mission is to represent and promote trail and mountain running. ATRA has individual, club, race, and corporate members as well as corporate partners. One of the highlights of ATRA’s website is its annual calendar which, […]