HatCreekFan:
Speaking only on spar trees, we would find a tall straight tree in the vicinity, if one wasn't available where we were logging, cut it down and stand it up in a new location with a pass block and line rigged to the top of the tree. We used what are called buckle and top guys to hold the tree in position. Once in position, we were then be pulled to the top of the tree with the pass line, which is connected to the yarder (logging equipment). Once at the top of the tree, the bull and haul back blocks where sent up via the pass line and rigged into the tree. The haywire is then brought of the tree and thru bull block and back down to the yarder and attached to the main line.......boring you yet? Anyway...blahblahblah...the hook tender, pimp, riggin slinger and choker setters are now ready to go logging.
Trying not to go on foreever, but after a while the rigging in the top of the tree needs to be turned, in order to allow logging in a different direction. At this time you would go over to the pass line, rig a chain into it, slip it around your legs, and the yarder operator would take you to the top of the tree. You signaled him when to stop, or he would pull the chain and you right through the pass block at the top of the tree... ;-) Yarder operator always got my full attention each change. Once at the top you turned the blocks. Back to logging.
I'm leaving out a lot intentionally, would do better with a cold one in my hand talking about all the intricacies of high lead, slack line and triple drum logging. Haven't done it in a number of years, but still keep in touch with the new methods. Hope this helps. Back to cattle. CW