GRAFENWOEHR, Germany -- Service members, civilians and family members in Europe are challenged to participate in the first Grafenwoehr Rugged Terrain Obstacle Run, here, April 13.

The event -- sponsored by Family and Morale, Wellness and Recreation and the 7th U.S. Army Joint Multinational Training Command -- begins at 9 a.m. at the Grafenwoehr Physical Fitness Center.

Participants must run, climb and jump past 13 hardcore obstacles spaced out over a grueling, 13-kilometer course along the Grafenwoehr Training Area's Rough Terrain Trail.

The trail is a training resource designed to test small units' ability to operate in a rugged and physically-demanding environment.

Obstacles include cargo net and rock climbs, muscle-aching tire flips and sled pulls, an oxygen-sucking stair run, and a filthy mud crawl.

All U.S. and NATO ID cardholders over 18 years of age are eligible to participate as either individuals or teams.

Participants can register with Grafenwoehr FMWR online at www.grafenwoehrmwr.com or by stopping by the Grafenwoehr Physical Fitness Center. There is a $15 early registration fee for each participant; registration the day of the race will cost $25. Participants who complete the run will receive a T-shirt.