MS of army surveyor at transit, officer standing on outcropping in Rockies, mountain range visible in background. MLS of two soldiers across ravine, one picking up coil of air hose, crossing ravine over footbridge, anchoring hose on side of ravine near camera. MLS across ravine of bulldozer shoving fill into ravine, officer signalling, TILT DOWN to fill sliding down to bottom. CUs of bulldozer moving past camera, of soldiers in battledress checking large compressor. Various shots of soldiers handling pneumatic drill. CU of soldier, TILT DOWN to drill, to auger biting into wooden beam. Various shots of eight truck army convoy rolling away along mountain road. Various shots of soldiers manning air compressor, connecting hose. LAS, MLS of tree "skyline", two conifers of standing out against sky in foreground. CU of soldiers, TILT DOWN to grinder, soldier making believe bit of metal flew into his eye. Shot of soldier hosing rock face with high pressure water hose. Various shots of soldiers unloading compressor components and equipment, starting compressor. CU of gauges, valves. Shot of soldier manning grinder.