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