[leadpenny]

A prank.

It is recent. The supporting limbs would show signs of being deformed, especially where the rock meets the bark, if it had been placed there any longer ago than three to five years.

If heavy ground equipment had been used, evidence would still be visible.

Answer: A well planned and coordinated helicopter sling-load operation.

[leadpenny]

I meant to say, "A well planned and executed . . . "