Fears are growing for a young female road-tripper who vanished without a trace while traversing an eerie landscape in one of ... to just 7,500 people, with vast expanses of empty high desert ...

AP PHOTOS: Canals Carry Precious Water Across Vast California Landscape FRESNO, Calif. (AP) — A vast network of dams and canals run by the state and federal governments carries water to farmers ...

Hand-carved arrowheads and jagged spears made of obsidian, a sharp rock formed by volcanic magma, are remnants of vast prehistoric trade networks that once cut across western North America.