To me, it looks like a lot of folks from town have come out to watch the cyclo-x race. Some walked and others rode on their bikes. Those that rode left their bikes lying on the hill side. The course runs through the middle of the frame, from right to left. You can see some of the racers running up the hillside carrying their bikes. People near the track are leaning forwards and turning their heads to catch a glimpse of the racres as they approach.