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Rough limestone

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Erosion forms of limestone on a rock shelter at Rough Trail. Red River Gorge, Kentucky, November 6, 1999.
Erosion forms of limestone in a rock shelter at Rough Trail. Red River Gorge, Kentucky, November 6, 1999.
Erosion of a limestone rock at Rough Trail. Red River Gorge, Kentucky, November 6, 1999.
Tree roots and erosion forms on a limestone rock at Rough Trail. Red River Gorge, Kentucky, November 6, 1999.
Rough weathered limestone rocks in Harrarah (Al Kharrarah). Southern Qatar, March 27, 2015
Rough eroded limestone rocks in Harrarah (Al Kharrarah). Southern Qatar, March 27, 2015

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