Non-Native Invasive Plants

The very thin and infertile soil is not inviting to most non-native invasive plants.

Diseases, Pests, and Other Threats

The spread of diseases and insect pests is slowed in landscapes like these talus slopes, where plants don’t grow densely, and where human and animal traffic is light or absent. 

Boulderfields appear to be nearly immune to deer grazing.

Learn more about some of the ecological threats to the natural communities of Harpers Ferry National Historical Park.

See Making a Difference to learn about some of the ways park staff are addressing these threats—and ways you can help, too.