The National Parks Omnibus Management Act (1998) directed the National Park Service “to establish baseline (resource) information and to provide information on the long-term trends in the condition of National Park System resources.”
In order to acquire the information and expertise needed by park managers to protect park resources and maintain ecosystem integrity in the face of multiple threats the Inventory and Monitoring Program was created.
To accomplish this formidable task, the NPS has grouped parks into 32 networks based on ecological similarity and geographic proximity. Big South Fork National River and Recreation Area is one of four units which compose the . The other units of the Appalachian Highlands Network are Blue Ridge Parkway, Great Smoky Mountains National Park, and Obed Wild and Scenic River.