Use this app to access Susquehanna National Heritage Area information as well as information about trails along Susquehanna River through Lancaster and York Counties. Provide feedback about maintenance issues. Get notifications of closures, construction, or other trail improvements. As one of 55 National Heritage Areas and 12 Pennsylvania Heritage Areas, Susquehanna National Heritage Area tells the stories of our region and raise the profile of our area to attract visitors from near and far.