Approx. 20 miles east of Evanston WY on I-80, then south on a private ranch road.
No time for tripod here: Hand held at ISO 200, f/4 for 1/30th sec. and 17mm.
I was touring with the owner of a large ranch in this corner of SW Wyoming when a typical summer thunderstorm blew in. Though the sky quickly darkened, there was a very brief opening and the light poured in. I managed 3 photos before the light was gone and the rain began.