1993. Arizona. State Land Department. Data layer depicts all rivers and streams. Converted in the fall of 1988 from USGS 1:100,000 scale DLG data to ARC format. Since then, multiple and... Arizona State Land Department.
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2000. Arizona. State Land Department. This coverage consists of spring locations in Arizona. This data set incorporates information extracted from both the USGS Geonames database and th... Arizona State Land Department.