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Big Bend National Park is the largest protected area of Chihuahuan Desert in the United States. The Rio Grand forms a 1,255 mile border between the United States and Mexico. Photo by Inge Alamy
Big Bend National Park is the largest protected area of Chihuahuan Desert in the United States. The Rio Grand forms a 1,255 mile border between the United States and Mexico. Photo by Inge Alamy
