extreme off-road 4x4 vehicle with snow and mud chains on wheels used for timber harvesting in the carpathian mountains, poland

4x4 agriculture background business chains deforestation ecology energy environment equipment extreme firewood forest forestry forwarder harvest harvester harvesting industrial industry log logging logistic lumber lumbering lumberjack machine machinery mud natural nature off outdoor renewable road snow technology terrain timber tractor transport transportation tree trees truck vehicle wheel winter wood work