U.S.-Mexico Teamwork Where the Rio Grande Is but a Ribbon - The New York Times:
"BIG BEND NATIONAL PARK, Tex. — There are places in the desert canyons of far West Texas where the border between the United States and Mexico amounts to an olive-green ribbon of water, so shallow that canoes scrape to a halt on the rocks. Here the Rio Grande — the border that has separated the two countries since 1848, with the signing of the Treaty of Guadalupe Hidalgo — narrows to a pinch. At times it is as wide as a school bus is long. At other times it is not even that wide. An owl can make the crossing with one or two flaps of its wings."
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