photo archive currently consists of more than 750 gigabytes
of aerial photos. In some areas, we have multiple data sets to
access. In Indiana, we have three different aerial image data
sets covering the entire state. For Illinois, we have two. We
also have complete sets for Iowa, Kentucky, Missouri, and Ohio
and partial sets for Michigan, Minnesota and Nebraska. We are
always adding images to our archive, contact the Mapping Office
for an up-to-date list.