working bulldozer unloads against the background of large mountains of small wooden sawdust

biomass biofuel mulch shredded hauling working loading removal horizontal operation trucking shipment logistic carrying storage supply manufacturing industry outside cargo industrial arboreal assembled loader factory transport sawing people sawdust chip wooden dust machinery processing stack waste pile sawmill form machine product production site dozer stacking bulldozer bark woodshop dried hill unloads against background large mountains small sawdust