1929  (1956)  This meant cutting and placing skids under the logs so that the skidding team could haul them to the main skid-road.
1958  Oxen were succeeded by horses, and then the skidding of the big logs was done with ship's winches; then came logging railroads, and then huge diesel jobs roaring over fancy logging highways, and cars that rode on cables strung between spar trees, and called skyhooks.
2n.
the process of yarding logs by means of a skidder (def. 3b).