comprehensive road network file; roads, streets, etc.
CENSUS
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From their main web page: "A partnership designed to facilitate access to information for health planning with the overall goal of producing action to reduce health inequalities." No longer updated, but many maps archived.
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comprehensive road network file; roads, streets, etc.
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from their web page: "The National Historical Geographic Information System (NHGIS) is a project to create and freely disseminate a database incorporating all available aggregate census information for the United States between 1790 and 2015." Free… Read more.
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comprehensive road network file; roads, streets, etc.
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comprehensive road network file; roads, streets, etc.