Shenandoah Valley Railway Company. Map of the Shenandoah Valley route via Luray Caverns, Natural Bridge & the Grottos. The Shenandoah Valley R.R. Norfolk & Western R.R. and East Tennessee, Virginia & Georgia System and their connections. Map of the United States showing relief by hachures, drainage, cities and towns, state boundaries, and the railroad network with named lines. Heavy black lines emphasize the main lines. Matthews-Northrup Company.