https://ortho.gis.iastate.edu/ New aerials released. You need to choose map layers: 2017 summer. I haven’t looked through site but it looks like they updated some things. In past- I went to bottom left- resized to 1250x1250 for better Res pictures. Upper left- when have picture I wanted - can convert to .jpg or whatever and save it. Very handy. Also- if u don’t want to spend $ on measuring acres like with Surety & don’t need to run csr’s - go to acme.com/planimeter - simple - pick any amount of points - look at bottom of screen for the acre total. Super handy for seed quantity, fertilizer volume or whatever. If u want fast acre measurements- super simple and free. Fyi.