GAP Website       • About the Trail  • Trail Maps  • Directions  • Mileage Chart  • Elevation Chart  • Trail Status  • Trip Preparations  • Lodging, Food & More  • Camping  • Bike Tours, Rides & More  • Trail Towns  • Local Events & Festivals  • GAP Trail News  • GAP Newsletter  • Trip Reports  • Trail Apparel  • Books, Cards & More  • Mugs and Cups  • Pins, Patches and Decals  • Make a Donation  • Who We Are  • Economic Impact Study  • Interpreting the Trail  • Trail Links  • Logo Policy  • Group Ride Permit Interpreting the Trail Table of Contents   • A Passage Through Time and the Mountains   • An Historical and Geographical Context: Significance of the Region   • Introduction   • A Brief History of the Trail   • Beginnings of the Great Allegheny Passage   • The Story of the Region   • Milestones Additional Information   • Salisbury Viaduct: The spectacular crossing of the Casselman River Valley - PDF File   • Western Maryland Railway: The Connellsville Extension from Cumberland - PDF File   • West Newton: A River Crossing in an Industrial Valley - PDF File   • Washington at Turkeyfoot: Seeking out the French - PDF File   • Big Savage Tunnel - PDF FIle   • The Red Waterfall - PDF FIle   • Connellsville Coke - PDF FIle   • Chestnut Ridge - PDF FIle   • Whitsett, PA - PDF FIle   • Banning No.1 - PDF FIle