“‘I think there is more significant history in this corridor than in any comparable space in America,’ Moe said. ‘There’s been a lot of encroachment already, particularly in the form of residential development. If this continues, the character of this region will be changed forever.’” Richard Moe of the National Trust for Historic Preservation adds the expansive Tri-State region between Gettysburg and Monticello to its list of most endangered historical sites.