The amazing Junction Group of ancient earthworks, saved recently by a coalition of organizations including the Arc of Appalachia Preserve System, The Archaeological Conservancy, Heartland Earthworks Conservancy, Rivers Unlimited and Hopewell Culture National Historical Park, is clearly visible as shadowy cropmarks in this aerial video taken by Tim Anderson, Jr.

Note added 11/16/2014: As Jarrod Burks, the modern re-discoverer of the Junction Works, notes in the comments below, the appearance of the earthworks in the video is not related to any properties of the earthworks themselves. They are not “cropmarks” in the normal sense of the word. Instead, they show where the surface of the ground had been deliberately modified by the removal of “soybean harvest debris” to highlight the locations of the earthworks as determined by Burks’ remote sensing study. The video does, however, dramatically represent the true shapes and locations of the earthworks in the context of the surrounding landscape.