kristinarinell
kristinarinell

Hole in the Wall

A hole in the rock wall lets the morning sun through. With its span of 91 feet and 46 feet high, this natural sandstone arch sits along Hwy 91 with a sign sayin...
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A hole in the rock wall lets the morning sun through. With its span of 91 feet and 46 feet high, this natural sandstone arch sits along Hwy 91 with a sign saying "Wilson Arch was named after Joe Wilson, a local pioneer who had a cabin nearby in Dry Valley. This formation is known as Entrada Sandstone. Over time superficial cracks, joints, and folds of these layers were saturated with water. Ice formed in the fissures, melted under extreme desert heat, and winds cleaned out the loose particles. A series of free-standing fins remained. Wind and water attacked these fins until, in some, cementing material gave way and chunks of rock tumbled out. Many damaged fins collapsed like the one to the right of Wilson Arch. Others, with the right degree of hardness survived despite their missing middles like Wilson Arch."
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