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North Carolina Geological Survey

How to use DOQQ CDs with desktop GIS packages
Here are java applets for converting decimal degrees to degrees, minutes, and seconds (DMS), and from DMS back to decimal degrees. NOTE: To use this properly only enter positive values. Remember that in the western hemisphere longitudes are denoted as being negative. Therefore do not forget to add the minus sign to values when using in a geographic information system (GIS) software package.
Download ArcExplorer from ESRI. This product can be used to view, tile, and print vector and raster data (opens in a new browser window).

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