• Regional: North America: Mexico  (3,513)
• Regional: North America: United States  (610,538)
• Regional: North America: United States: Regions: Southwest  (128)

• Border Information Clearinghouse - Large collection of articles, statistics, news items, issues analyses, and internet links about social, economic, environmental, and health conditions and issues related to the U.S.-Mexico border.
• The Borderlands Encyclopedia - Includes collection of internet resources, including audio files and links, about the border region, including culture, economy, business, health, environment, government, politics, and other topics.
• BorderQuest - Collection of articles, photos, and music from the US-Mexico border region, compiled by the Smithsonian Institution in 1996 for the American Folklife Festival.
• San Diego/Tijuana Border Data - Geographic information, air photos, and demographic data relevant to the western portion of the border, from UCSD.

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