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1. Political Boundaries, North America, 2004

2004. Instituto Nacional de Estadística, Geografía e Informática (Mexico), Geological Survey (U.S.), and Canada Centre for Remote Sensing. This polygon shapefile depicts the political boundaries of North America, including: international boundaries, provincial boundaries, state or terr... Geological Survey (U.S.).

2. ZIP Code Boundaries, United States (Q3 2004)

2004. TTG, Inc. This polygon shapefile contains zip code boundaries for the United States. Data are valid from July to September, 2004. Attributes included in the ... TTG, Inc.