Jackson River Valley and Gorge

Home » Appalachian Mountain Gaps and Passes » Jackson River Valley and Gorge

Jackson River Valley: Passageway Across the Appalachian Mountains

A water gap is a narrow pass eroded by a river through a mountain ridge, where fluvial erosion outpaces tectonic uplift over geological time. In Virginia’s Allegheny Highlands, part of the Appalachian Ridge and Valley Province, the Jackson River forms such a feature, notably at Rainbow Gap near Clifton Forge. Originating in Highland County, the 96-mile river flows southward through rugged terrain, draining into the Cowpasture River to form the James River. At Rainbow Gap, it carves a scenic micro-gorge with class II+ rapids and steep rock walls, showcasing millions of years of erosion through resistant bedrock. This gap illustrates how ancient streams maintained their courses during mountain formation, creating vital corridors through otherwise impassable landscapes.

Chesapeake & Ohio Railway

Water gaps have long facilitated human movement. Native American paths and settler trails followed the Jackson’s valley. By the mid-19th century, railroads exploited the natural passage for westward expansion. The Virginia Central Railroad, chartered in 1836, reached the Jackson River at Clifton Forge by the 1850s, serving as a key Confederate supply line during the Civil War. In 1867, the Chesapeake and Ohio Railway (C&O) extended the line, completing the Hot Springs Branch from Jackson’s River Station to Covington along the river and continuing its mainline westward to Huntington, West Virginia, and Cincinnati, Ohio. This route transported coal, passengers, and visitors to Hot Springs resorts, boosting the regional economy. While the Hot Springs Branch was abandoned in the 1980s and repurposed as the 16-mile Jackson River Scenic Trail for recreation, the C&O’s mainline through the water gap remains active.

CSX Line Today

Today, CSX Transportation operates this route as a major freight corridor, leveraging the water gap for efficient passage through the Alleghenies. Part of CSX’s Mountain Subdivision spans over 300 miles from West Virginia’s coal fields to eastern ports, handling multiple daily trains daily with coal, intermodal cargo, and other goods. The gap’s low gradients (under 1%) and minimal tunneling make it indispensable. After Hurricane Helene damaged segments in September 2024, CSX restored full service by October 2025 with multimillion-dollar repairs, underscoring its resilience. Carrying over 14 million tons annually, it supports thousands of jobs.

For More Information – Sources and Resources

The following are excellent resources for those of you wanting to explore and learn more about the history and operation of the Appalachian Railroads. These sources of information also serve as reference and historical materials for Appalachian-Railroads.org. Much of the collective railroad history data points on this website are verified across multiple sources.

  • Personal Maps & Memorabilia: Documents, maps, timetables, and track charts
  • Associations, Historical Societies and their Archives
  • Archives of Appalachia: ETSU, Johnson City TN
  • Newspaper Articles: Newspapers.com
  • Magazines/Online: ‘Trains‘, ‘Classic Trains‘
  • Books
    • Drury: The Historical Guide to North American Railroads
    • Appalachian Region
      • Grant: ‘The Louisville, Cincinnati & Charleston Rail Road’
      • Graybeal: ‘The Railroads of Johnson City
      • Huddleston: ‘Appalachian Crossings – The Pocahontas Roads‘ and ‘Appalachian Conquest‘
      • Poole: ‘A History of Railroading in Western North Carolina‘
      • Timko and Young: ‘Appalchian Coal Mines and Railroads, Vol. 1, 2, & 3‘
      • Roberts: ‘Sand Patch, Clash of the Titans‘
      • Yanosey: ‘Tidewater Triangle’
    • Atlantic Coast Line Railroad
      • Calloway: ‘Atlantic Coast Line, The Diesel Years‘
      • Griffin: ‘Atlantic Coast Line, The Standard Railroad of the South‘
      • Goolsby: ‘Atlantic Coast Line Passenger Service, The Postwar Years‘
    • Baltimore & Ohio Railway
      • Jacobs: ‘The History of the Baltimore & Ohio’
      • McGuirk: ‘Baltimore & Ohio Railroad in the Potomac Valley‘
      • Ori, Salamon and Oroszi: Baltimore & Ohio/Reflections of the Capitol Dome‘ and ‘Baltimore & Ohio/Sunburst Trail to Chicago’
    • C&O Railway/Chessie System
      • Dixon: ‘Chesapeake & Ohio, Superpower to Diesels‘, Chesapeake & Ohio in the Coalfields, ‘C&O Allegheny Subdivision‘, and ‘Chesapeake & Ohio Railway – A Concise History and Fact Book‘, and ‘The Chessie Era’
      • Dorin: ‘The Chesapeake & Ohio Railway’
      • Huddleston: ‘Riding the New River Train‘
      • Ori – ‘Chessie System‘
      • Paton: ‘Allegheny with an A’
      • Turner: ‘Chessie’s Road‘
    • Clinchfield Railroad
      • Beach: ‘The Black Mountain Railway’
      • Goforth: ‘Building the Clinchfield‘ and ‘When Steam Ran the Clinchfield‘
      • Helm: ‘The Clinchfield Railroad in the Coal Fields‘
      • Irwin & Stahl: ‘The Last Empire Builder: The Life of George L. Carter‘
      • King: ‘Clinchfield Country‘
      • Marsh: ‘Clinchfield in Color‘
      • Poteat & Taylor: ‘The CSX Clinchfield Route in the 21st Century‘
      • Stevens & Peoples: ‘The Clinchfield No. 1 – Tennessee’s Legendary Steam Engine‘
      • Way: ‘The Clinchfield Railroad, the Story of a Trade Route Across the Blue Ridge Mountains‘
    • CSX Railroad
      • Springirth: ‘CSX Transportation Heritage‘
    • ET&WNC: Listed on the website’s ET&WNC pages
    • Interstate Railroad
      • Wolfe & Wolfe: ‘Appalachian Coal Hauler’
      • Wolfe: ‘The Interstate Railroad‘
    • L&N Railroad
      • Castner, Flanary & Dorin: Louisville & Nashville Railroad The Old Reliable‘
      • Flanary: The Louisville & Nashville Cumberland Valley Division
      • Flanary, Oroszi & McKee: ‘The Louisville & Nashville in the Appalachians‘
      • Oroszi & Flanary: ‘Dixie Lines, The Louisville & Nashville Railroad‘
    • NC&StL Railway
      • Prince: ‘Nashville Chattanooga & St Louis Railway‘
    • Norfolk Southern
      • Esposito: ‘Norfolk Southern Railroad’
      • Lindsey: ‘Norfolk Southern 1995 Review‘
    • Norfolk & Western Railway
      • Newton: ‘Rails Remembered, Volumes 1-6
      • Warden: ‘Norfolk & Western: Diesel’s Last Conquest‘ and ‘Norfolk & Western’s Passenger Service’
      • Wolfe, Wilson & Mandelkern: ‘Norfolk & Western’s Clinch Valley Line‘
    • Pennsylvania Railroad
      • Jacobs: ‘The History of the Pennsylvania Railroad‘
    • Seaboard Air Line, Seaboard Coast Line, Seaboard System
      • Calloway and Withers: ‘Seaboard Motive Power‘
      • Carleton: ‘Locomotives of the Seaboard System‘
      • Griffin: ‘Seaboard Coast Line and Family Lines Railroad‘ and ‘All Lines North of Raleigh‘
      • Johnson: ‘Through the Heart of the South‘
    • Southern Railway
      • Davis: The Southern Railway, Road of the Innovators‘
      • Flanary, Lindsey & Oroszi. The Southern Railway‘
      • Webb: ‘The Southern Railway System: An Illustrated History‘
      • Wolfe: ‘Southern Railway Appalachia Division‘
    • Virginian Railway
      • Reisweber: ‘Virginian Rails’
      • Wiley & Wallace: ‘The Virginian Railway Handbook‘
  • Online Article: Flanary: ‘The Quick Service Route, The Clinchfield Railroad‘; Scientific American: ‘The Costliest Railroad in America‘
  • Online Videos: Ken Marsh on Kingsport area railroads and region’s history Video #1 | Video #2:
  • Websites:

3Cs Websites

Appalachian-Railroads.org | Clinchfield.org | Southern-Railroads.org