The Colebrookdale Railroad, also known as the Secret Valley Line, is a heritage railroad operating between the communities of Boyertown and Pottstown in the US state of Pennsylvania. The railroad first opened in 2014 and has been operating diesel-powered excursion trains since 2015.
As of 2023, the railroad will soon be operating steam-powered excursion trains as well as part of their upcoming steam program.
Locomotive Roster[]
| Photograph | Locomotive | Build date | Wheel Arrangement | Manufacturer | Locomotive Class | Status |
|---|---|---|---|---|---|---|
|
Lake Superior & Ishpeming No. 18 | 1910 | 2-8-0 "Consolidation" | American Locomotive Company (ALCO) | Class SC-4 | Being Restored Back to Operating Condition |
|
Grand Trunk Western No. 5030 | 1912 | 4-6-2 "Pacific" | Baldwin Locomotive Works | Class J-3b | Undergoing Restoration to Operating Condition |
|
Canadian National No. 5288 | March 1919 | 4-6-2 "Pacific" | Montreal Locomotive Works | Class J-7-b | Undergoing Restoration to Operating Condition |
|
Southern Railway No. 5128 | 1974 | B-B | Electro Motive Division | EMD GP38-2 | Operational |
|
Pennsylvania Railroad No. 7236 | 1959 | B-B | Electro Motive Division | EMD GP9 | Operational |
|
Eastern Berks Gateway Railroad No. 9 | 1964 | 4w | Plymouth Locomotive Works | Plymouth ML-8 | Operational |
Former Locomotives[]
| Photograph | Locomotive | Build date | Wheel Arrangement | Manufacturer | Locomotive Class | Status |
|---|---|---|---|---|---|---|
|
United States Army No. 5002 | 1942 | 0-6-0 | H.K. Porter, Inc. | USATC S100 Class | Was stored in Boyertown from 2015 to 2016 before being sold to BMG Railroad Contractors, who is currently restoring it to operating condition in Baraboo, Wisconsin. |
|
New Haven No. M-55 | 1930 | J.G. Brill Co. | Doodlebug (rail car) | Operational. Acquired by the Nevada Northern Railway Museum in January 2025. |
Trivia[]
- Lake Superior & Ishpeming No. 18 has previously operated in excursion service for the San Luis & Rio Grande Railroad, also known as the Rio Grande Scenic Railroad, in Alamosa, Colorado from 2007 to 2013 as part of their steam program, which has since been discontinued.







