So there I was on the unmapped backroads of South Dakota, flying south down gravel roads through corn and soybean fields, when suddenly I encountered this. (You might have to click "read more" for the photo.)
Quandary: Do I try to get through? It was getting fairly late and I was tired and I wanted to find a campground before dark. People are in short supply in South Dakota, and there was nobody around to help.
And since I didn't know where I was, what did it matter if I backed up and tried another route?
I did, and I had my dinner cooked in time so I could almost see what I was eating.