While the ATV or Tractor Forwarding Arches can operate in a variety of situations, slope is the main limiting factor.  For steep slopes where wheeled vehicles can’t or shouldn’t go, or where there is no hope op pulling logs up the hill with wheel traction, the Fetching Arch and any source of line pull can quickly bring the logs out.  Primarily meant for use with high speed winches like those using tractor PTO power, the Fetching arch will pick up the log when pulled by the tow ring.  With logs clean off the ground, the power required is much less and the impact can be negligible.  The Fetching arch is walked or lowered down slope to the log, stood up on the log and the tongs set at, or just slightly ahead of the mid-point and pulled back in by the tow ring.  When the line comes tight, the Fetching Arch toggles, or ever-centers, to pick up the log and bring it along.