DescriptionKarstic formations in the Sierra de Tamaulipas, Municipality of Llera, Tamaulipas, Mexico.jpg
English: View of karstic formations south of Acuña in the Sierra de Tamaulipas, Municipality of Llera, Tamaulipas, Mexico (ca. 23.1619°N, 98.4416°W, 791 m.). Photographed on 16 September 2006 by William L. Farr.
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