Page 21 - D. Raleigh "Knots and ropes for climbers"

Figure Eight Follow-Through with Overhand backup.

A final and equally important use for the Figure Eight Follow-Through is for tying the rope around
trees, horns, boulders, and other loop able protuberances. In this capacity, the knot is again without
equal.

When you tie the Figure Eight Follow-Through, make certain you leave a long tail, and finish this
with a Double Fisherman's.

Common Uses
Connecting rope to climbing harness
Tying rope around trees, boulders, and so on