2011. United States. Bureau of Transportation Statistics, Beningo, Steve, United States. Bureau of Customs and Border Protection, and Liu, Zhi. This point shapefile depicts points of entry for land modes along the United States - Canada border and the United States - Mexico border. The port... United States. Bureau of Transportation Statistics.
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2013. California. Department of Transportation. This point shapefile contains the locations of existing and future ports of entry along the border between the United States and Mexico. This layer... California. Department of Transportation.