Eagle Rock was an early name for Idaho Falls, Idaho. The name was derived from an actual rock 7 miles upstream at .
During 1864, Harry Rickets built and operated a ferry 9 miles north of the current location of Idaho Falls. Those who traveled along the river to access the ferry discovered an isolated basalt island in the Snake River that was the nesting site for approx. 20 eagles.
A small community, Payne, was built near this location on the railroad track. Today this area is called Osgood.
In 1972, a boy scout from Idaho Falls constructed a small monument on the west shore of the river, within sight of Eagle Rock.
Today, no eagles nest on this rock. The location is visited by fishermen, hunters, and photographers.