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US-Mexico International Border fence at the Jacumba Mountains in Jacumba, California
borderfencefencingboundaryMexicoMexicanUnited StatesU.S.USAwallimmigrationillegalaliendesertCaliforniaremotemountainsJacumbaJacumba Mountainssandkeep outwildernessSonoran DesertAmericaAmericanNorth America200903210223