??? Photo exposed

Well, nobody guessed this mystery photo. I thought it looked a bit like a flour tortilla that had been warmed on an iron skillet.

I was working on the drainage this past weekend and moved a large object to discover this huge toad sitting under it. I never saw it move. I ran in and got my camera and it was in the same place as when I went in. This was not a slimy skinned toad, but one of the 'wart' types of skin. The mystery photo is a section of the skin on it's back.