A Marine with 2nd Battalion, 5th Marine Regiment, forges a stream in Toiyabe National Forest at the Mountain Warfare Training Center in Bridgeport, Calif., during practical application of the one-rope-bridge, Oct. 12, 2010.::r::::n:: - A Marine with 2nd Battalion, 5th Marine Regiment, forges a stream in Toiyabe National Forest at the Mountain Warfare Training Center in Bridgeport, Calif., during practical application of the one-rope-bridge, Oct. 12, 2010.::r::::n::