Castle Rocks Geological Area Overlook

Quick Facts

MANAGED BY:

Idaho Department of Parks and Recreation

Amenities

1 listed

Scenic View/Photo Spot

From this rocky ridge, hikers can view the Stines Creek riparian area below and watch for birds and other wildlife; however, it is the Castle Rocks Geologic Area that dominates one’s attention. The towering spires and monoliths of the Almo Pluton fall within areas managed by the State Park, Bureau of Land Management, and Forest Service. 

This topography results from crustal extension. As the crust is stretched, high angle faults develop. Along these faults, mountains uplift and valleys drop, creating the distinctive mountain ranges.

As rocky ranges rise, the newly exposed rock is immediately subjected to weathering and erosion. This rock is attacked by water, ice, wind, and other erosive agents, that have produced many of the geologic features visible today.