Big Ten Academic Alliance Geospatial Discovery Portal
Big Ten Academic Alliance Geoportal
Watson's American Republic and rail road map of the United States
- Watson, Gaylord.
- Scale not determined; 1 map: color; 76 x 106 cm Railroads--United States--Maps.
- Perry & Spaulding
- Penn State Rare Maps
- United States of America
- Contributed by:
- Penn State
- More details at