LS of pack train moving along narrow path against sheer cliff. HAS of train snaking up trail as it proceeds up-slope. Closer side view of pack horses toting lumber and small crates. HA PANs down-slope to horses and men resting during trip. HASs of pack train moving slowly past large evergreen trees in foreground. HALS of horses, TILT UP to mountains and PAN to valley river in the distance. Various shots of bare slopes, sites of winter-time avalanches, of pack train, of stark buttes and boulders. Shots of horses in small evergreen copse, of tents under trees, men loading horses with crates and lumber. HAS of tents, TILT UP to mountain. Shot of ground littered with dry tree trunks, PAN of mountain in the distance. HAS of bare slopes except for young evergreen trees and dry tree trunks. Shots of pack train on its way again, one horse struggling up rocky slope to trail after fall. Shots from various angles and distances of pack train, of rough mountain country.