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STS060-83-041 (3-11 Feb 1994) --- The large city of Monterrey, in northeastern Mexico, was founded at the edge between the Sierra Madre Oriental and the Rio Grande Embayment portion of the Gulf Coastal Plain. This location is analogous to the Fall Line along the United States eastern seaboard, but instead of lying along a stream at the head of navigation, Monterrey lies at the boundary between a well-watered mountain range and a semi-arid plain where irrigation is often necessary for successful agriculture. The mountains themselves are formed from folded limestone and shale beds; to the sout…
