06/17/2023 Galesburg, IL. Took a road trip on the bike to check out the BNSF's second largest railyard! Lots going on that day along with train traffic. With the drone it's easy to see them pulling the pin and sending cars down the hump and through the retarders. The retarders help to keep the car speed around 4 mph for coupling. Great town to visit for an enormous amount of railroad activity!