On our way up to Mammoth Mountain we got side tracked by a map we found at a Carl's Junior back in town. The map disclosed information about nearly every mountain road in the area, including the steepness grade, pavement type, and length...this was a GOLDMINE for downhill skateboarders. This first stop was impromtue, I forgot my tripod in the other car at the base of the hillt & we suffered several casualties. Luckily they were only minor rasberries & road rash...Good first day.