Word on the street is that tens of thousands of bikers ride in the Trail of Tears commemorative bike ride held the third weekend of September each year.
I drove to a nearby parking lot after realizing I could hear the thunder.
I almost missed them. I was there about three minutes before the Alabama State Trooper came along which I believe signaled the end of the masses.
They go through en masse for 30 to 45 minutes around noon, however, there are stragglers both before and after all day long.
When you aren't a biker, they kinda start to look the same.