• A view of the South and North abutments of the South Fork Dam.  The Visitor Center, Unger House, and Spring House are visible in the background.  As is visible, a spur railroad line connects coal trains with the main line of the railroad.

    Johnstown Flood

    National Memorial Pennsylvania

Environmental Factors

Two persistent problems at Johnstown Flood National Memorial are non-native plants that are invading the native plant communities and acidic, abandoned mine drainage that flows through the park. Non-native plants that are highly invasive and threaten the park's resources include exotic bush honeysuckles, giant knotweed and Japanese knotweed. Abandoned mine drainage that flows through the park originates upstream near the communities of Saint Michael and Beaverdale.

Monitoring in the Context of Climate Change

Did You Know?

Memory Jar, Johnstown Flood Museum

People made Memory Jars from items collected among the ruins after the 1889 Flood. There is one such Memory Jar on display at the Johnstown Flood Museum.