This is just south of us on Hwy 75 south. A farmer does it with his tractor and not sure if he uses a plow or a disc. He uses GPS to get the letters readable. He has done this every fall for several years now. Here’s the view from the flight pattern into OFFUTT AIR FORCE BASE ( Bellevue , NE., just south of Omaha ).
It’s good to see that there are people out there that care and are finding ways to show it in a surprising variety of ways!