Nearly 350 yards of trenchline encircled the outpost. Most was in good condition, five or more feet deep and two feet wide. The main trench on the reverse slope was in spots shallow, only three to five feet, and a new trench was being dug. Fields of fire for small arms protection were considered good, although some of the 28 fighting holes were overly close to culvert and sandbag overheading, which prevented complete fire coverage of forward slopes. Adequate fire support could be given along the southern slope of the west finger extending from COP Reno, which was also mutually supporting with that of the Reno Block. Forward observer teams for the 60mm and 81mm mortars provided observation for supporting arms. The arsenal of weapons at Carson included 4 A-4 light machine guns, 2 flamethrowers, 2 3.5-inch rocket launchers, 9 Browning automatic rifles, 36 M-1 rifles, 2 carbines, 2 pistols, and 4 grenade launchers. Some 450 yards northeast, COP Reno (Hill 25) was dug in on a ridgeline that fronted enemy Hill 25A (also known as Hill 150), immediately north. Approximately 1,600 yards away from the MLR, Reno was the central of the three outposts and also the one most distant from Marine lines. West to east, critical terrain consisted of five enemy positions--Hills 31, 67, 25A, 190, and 153--and friendly companion outpost Vegas, on the right flank. (See Map 25.) Two main trenches led into the outpost, a reverse slope fortification. The forward trench, perpendicular to the ridgeline fronting the position, was approximately 20 yards long and 8 feet deep. The second, to the rear and about the same length, traversed the outpost in an east-west direction. Approaching from the entrance, or “Gate” of the MLR, the two trenches joined on the left, forming a 90 degree angle. A cave, located in the arc between the trenches, provided overcrowded living quarters where personnel slept either on the dirt floor or atop sandbags, since there were no bunkers at Reno. Ammunition supplies, as well as the corpsman’s first aid facilities, were cached in the cave. [Illustration: MAP 25 K. WHITE COP RENO March 1953]