Abstract: The following specification discloses a tree harvesting apparatus controlled from a light weight tracked vehicle having a rotatable platform for holding a boom apparatus to which a harvester head is hingeably attached. The harvester head comprises shearing means and delimbing knives mounted to a support member which can be positioned by the boom against a tree to be severed and then rotated into a horizontal position for the delimbing and severing of a tree into bolts in proximity and to the side of the control vehicle.