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For our first documentary of 2025, we are pleased to release our superb documentary, "The Tale of Four Tunnels". This documentary tells the in-depth story of the Baltimore & Ohio Railroad's Sandpatch Tunnels, beginning with the Chesapeake & Ohio Canal's route and proposed 4-mile-long Allegheny Tunnel, which closely mirrored what the B&O eventually built between the 1840s and 1871. We hope you enjoy this documentary and if you liked it, please hit that thumbs up button, comment, subscribe, or become a supporter! Subscribers: Please help support APSL through YouTube by sending a Super Like, becoming a supporter, or by crowdfunding through PayPal and Venmo. APSL is a registered 501 (c) 3 Not-for-profit and with your support we can continue to produce high-quality related media for you to enjoy. Even just $1 per month is a huge help. paypal.me/APSL2018 Venmo: @APSL2018 Thanks for watching! Please comment, rate, subscribe, and share! Also, stay up to date with APSL via our Social Media platforms listed below: / apsl2018 / alleganypreservationsocietyltd / @apsl2018