McGee, John2015-02-122015-02-122011-09-05http://hdl.handle.net/10919/51371USAPhotoMaps requires that you know how to operate a GPS unit and organize and collect field data associated with a GPS unit. This free software package enables you to download GPS waypoints (or tracks) from your GPS receiver onto your computer and to superimpose the collected data on top of aerial photographs.4 pagesapplication/pdfen-USVirginia Cooperative Extension materials are available for public use, re-print, or citation without further permission, provided the use includes credit to the author and to Virginia Cooperative Extension, Virginia Tech, and Virginia State University.Precision, Geospatial, & Sensor TechnologiesExtension publicationhttp://pubs.ext.vt.edu/303/303-203/303-203_pdf.pdfPrecision agricultureGlobal positioning systemGeographical information systems