This nest was probably abandoned because it was physically possible for coyotes to reach it. Most of the eagle nests I encounter are impossible to reach or get good photos of. This one could be reached by a strip of rock about a foot wide with a 25-30 meter drop on all other sides.
I do paleonological fieldwork in the Bridger Basin in the extreme southwest corner of Wyoming. The distant blue peaks in this photo are the Uinta Mountains across the state line in Utah. This is one of the richest Eocene fossil areas in the world.