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suza
Monterrey
Worth visiting!
“The valley of Cuatrociénegas, in Coahuila, México, has the greatest number of endemic species of any place in North America. Most of the valley’s endemic plants and animals are listed by the Mexican government as threatened or endangered and in 1994 the basin was declared a National Protected Area.”
From: http://www.utexas.edu/tmm/sponsored_sites/dfc/cuatroc/