Shot of explosives man rushing to dynamite shack, yelling out warning. Shot of log jam followed by two MLSs of explosion. LAS of worker on top of small dam, TILT DOWN to sluice gate, water coming through. Sequence showing loggers placing explosive charges in log jam, laying fuse, running away. Shot of man lighting packages of dynamite, throwing them over and past camera. Shots from various distances, of bulldozer pushing logs, of driver at controls.