Attended Thunder in the Valley in Johnstown, PA for the first time this year with the Steele's. I did not realize from their descriptions just how large this rally is; literally every street in Johnstown is lined with bikes during this event. This event dwarfs Carlisle Bike Fest; there are usually over 200,000 bikes at this event over the course of the weekend.
A steady stream of bikes cruise up and down the streets. To keep things from getting out of control, the police provide secured parking areas for some larger groups to ensure their bikes are safe and rivals don't attempt any mischief. For those who want to show off their bikes, a parade mid-day draws a large crowd.