We seen something like that last year. A guy on a sport BMW bike passed us south out of Deadwood at a very high rate of speed, going down hill into a sharp corner. He missed the corner and hit the guard rail at 60+ mph. The bikers ahead of us were paramedics and tended to his injuries. He looked dead to me, but was blinking. No cell service in the bottom of this valley. I turned around and went "quickly" to the top of the hill and called 911. The sharp corner and sign were obvious to us, but not this guy. I drive slower every year.
Cheese