U.S. Navy Petty Officer (Engineer's Aide) 3rd Class

U.S. Navy Petty Officer (Engineer's Aide) 3rd Class Mark Monton, a surveyor with Naval Mobile Construction Battalion 133, jumps over a ditch while walking to a new survey point on the Helmand River in southern Helmand province, Afghanistan, Feb. 11, 2013. Monton and Engineer's Aide 3rd Class Irwin Tan, also a land surveyor, worked with engineers from Regional Support Command-Southwest, NATO Training Mission-Afghanistan, to plot the river's course and depth for the sites that might be used by the Afghan Border Police in the area. (U.S. Army photo by Bill Putnam/Released)