Red sandstone spires against a cloudy sky
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Fisher Towers, Pennsylvanian-Permian Cutler Group, near Moab, #Utah, USA. These arkosic sandstones shed from the former Uncompahgre highlands can be over 4500 m (15,000 feet) thick according to sources in Condon (1997, USGS Bull 2000-P). Beautiful hiking and climbing area!
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