Devil's Slide, Vertical limestone formation in Morgan County, United States.
Devil's Slide is a geological formation consisting of two parallel limestone slabs projecting 40 feet from the mountainside and separated by 25 feet of eroded softer rock. This formation sits in Weber Canyon and creates a distinctive landmark visible from the interstate highway.
This rock formation originated 170 million years ago when sediments accumulated in an ancient seabed. About 75 million years ago, these layers were tilted to a nearly vertical position during the mountain-building process that shaped the region.
The name refers to the steep angle and dark color of the limestone cliffs, which resemble a sliding surface. Visitors immediately recognize this distinctive shape when traveling along Interstate 84 and understand why early settlers chose this descriptive name.
The best viewing locations are the designated parking areas along Interstate 84 near the formation. From these spots you can observe the rocks clearly while the Weber River flows between the highway and the limestone slabs.
Unlike most limestone layers that stack horizontally, these slabs stand nearly vertical as a result of the mountain-building forces that affected this region. This unusual arrangement helps visitors understand the powerful geological processes that reshaped this area millions of years ago.
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