Perhaps you don't need a UAS! Data Discovery and Other Options
The expense of creating aerial imagery tends to motivate a desire for archiving and cataloging. As such, there is a large
amount of available imagery, much of it free, available to the public. The USGS website earthexplorer , where there are
images in various formats going back decades, is a good example. Other options include university libraries, state and local
GIS clearinghouses (AZGEO, for instance), and private organizations that sell imagery. Our objective of this brief is to give the
audience an overview of available imagery resources.