Ключевые слова: aspen, aspen logs, aspen tree, broken road, extraction road, fieldengine, fir, forest industry, forest products industry, forestry, forestry industry, haul road, haulage road, log yard, logging, lumber camp, lumber industry, pine, pine log, skidding machine, skidway, stack of logs, storage place, timber cutting, timber harvesting, timber industry, timber yard, trac, tractor, wood industry, wood storage place,