Abstract: A skyline transfer apparatus is disclosed herein having in one embodiment a carriage. The carriage in one form comprising: at least one carriage side-plate; a plurality of skyline riding sheaves rotatably attached at near and outbound end of the carriage side-plate(s). The skyline riding sheaves ride upon a tensioned skyline during operation of the carriage. A mainline attachment point is provided at the outbound end of the carriage side-plate(s). A haul-back line attachment point is provided at the near end of the carriage side-plate(s); and a drop line extends below the carriage to support a load. A jack is also disclosed, pivotably attached to an intermediate spar. The intermediate spar supports the jack above a ground surface between a main yarder and a strongpoint. The jack comprises at least one side-plate(s) with at least one skyline supporting sheave rotatably attached to the side-plate(s).