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Las Bardenas Reales

This is Las Bardenas Reales, a natural park in Navarre, Spain, located not far from Tudela.  This is a semi-desert dry terrain known as badlands.  There's a lot of soft sedimentary rock and clay-rich soils which have been eroded by wind and water, creating fantastic angles and formations. 

Zaragoza & el Monasterio de Piedra