GIS Images available for download from PCPA
The images available for download are orthorectified aerial photography for 2001(& 1998), 2002, 2005, and 2007. Orthorectification is the name of the process used to remove distortion and make the photo fit real worked distances and surfaces. The compressed images are in MrSID (Multi Resolution Seamless Image Database) format.
There are four files that make up each image, .sdw, .sid, .sid.aux and one optional file .aux. You must download all available files. There is an Image Key map in each folder you can review to help you select the correct Image file.
Florida Images Inventory Website
Additional aerial images of Polk County (and the State of Florida) are available for download or purchase from the Florida Images Inventory website: https://freac.fsu.edu/data.html