On my way home from South Dakota I spotted a headlight in the distance. As we approached the headlight stopped and there was a cloud of dust. Reaching the location, we discovered that the train was on the ground. Another person was on the phone with 911 when we stopped. Took a couple of quick photos from the moving car, but didn't stop once I noticed the placards. No injuries, no spills, and the track was reopened the next day.