Map of Johnstown’s original street plan
Map of Johnstown showing Pennsylvania Canal basin (ca. 1840-50)
Map of Johnstown in 1854
Map of Johnstown showing path of Pennsylvania Canal and Portage Railroad, ca. 1850
Railroad map of Johnstown area Portage Railroad sites
Map showing path of 1889 flood from South Fork to Johnstown
Map of Johnstown floodpath showing elevation
Map of Johnstown showing areas of flood destruction (Caldwell atlas, 1889)
Map of Johnstown floodpath showing topography (Caldwell atlas, 1889) Blue: primary wave; orange: secondary wave; pink: backwash wave
Caldwell atlas map of flood destruction
Map of PA showing record 1889 rainfall
PA map of areas flooded during the great storm of 1889
