Pikes Peak Granite
Pikes Peak Granite was formed as a result of a massive body of magma that slowly cooled deep underground, most likely under an active volcano 1.08 billion years ago. Pikes Peak Granite is named for Pikes Peak, one of Colorado's "fourteener" mountains at approximately 14,100 feet above sea-level. Due to the generally fine-crystalline nature of Pikes Peak Granite, it typically forms smooth and rounded boulders (as seen at right), and erodes into a granite gravel that is often used for road materials in the region.
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