Cliff Cox caught this shot at the Cheyenne Airport,.that some (like me) may see as art. Cliff says this is a "giant rototiller that mixes fly ash into soil to stabilize it. There is too much clay in the soil and it is holding moisture. This fixes it."

It reminds me of something that could have been on the cover of an old Heavy Metal science fiction magazine or movie.

0Lostboy0 via Youtube