The Colebrookdale Railroad, also known as the Secret Valley Line or colloquially as The Colebrookdale, is a tourist railroad located in the U.S. state of Pennsylvania. The railroad operates between Boyertown in Berks County and Pottstown in Montgomery County.

Boyertown is a borough in Berks County, Pennsylvania, United States. The population was 4,264 at the 2020 census. Boyertown is known for the many painted fiberglass bears that can be found throughout the town and borough.