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Initial Point of Boundary Between U.S. and Mexico

Initial Point of Boundary Between U.S. and Mexico Initial Point of Boundary Between U.S. and Mexico - Credit: Wikimedia Commons

The Initial Point of Boundary Between U.S. and Mexico (Monument No. 258) is the westernmost boundary marker on the international boundary between the United States and Mexico and as such has since its erection marked the southwestern corner of the Continental United States. According to the 1848 Treaty of Guadalupe Hidalgo, the initial border point is set as one marine league (three nautical miles) south of the southernmost point of San Diego Bay, and the border proceeds in a straight line towards the confluence of the Colorado River and Gila River. Read more on Wikipedia

Source: en.wikipedia.org