Marble Canyon
Massive cliffs of the Hidden Valley Dolomite (Silurian? and Devonian) form the core of Marble Canyon's narrow gorges. The cliffs in the distances appear more layered and consist of dolomite, limestone, and chert of the Perdido, Lost Burro, and younger formations of Devonian to Pennsylvanian age (Hunt and Mabey, 1966).
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Last modified: 11/30/2010