The Running Bowline
Use it to hang gear, drag game, or form a snare. The beauty of this knot is that it does not weaken rope and is easy to untie.
Step 1: Form a bight near one end of the rope.
Step 2: Pass the tag end of this bight around the standing part of the rope and back through the bight, forming a large noose.
Step 3: Pass the tag end under and around the rope just ahead of, and then back up through, the bight.
Step 4: Tighten, but allow the running end of line to pass through the knot freely.