<div class="description">
Norbeck, Peter; South Dakota State Highway Commission; Gray, Chris, field team project manager; Magdalenos, Christine, landscape architect; Marston, Christopher, project manager; Christianson, Justine, transmitter; Tichi, Claire, historian; Davis, Tim, historian; Delyea, Todd, delineator; Grinstead, Tim, delineator; Heckaman, Stacey, delineator; Michel, Roger, delineator; Haas, David, photographer</div>
Documentation compiled after 1968
<a rel="nofollow" class="external free" href="https://www.loc.gov/pictures/item/sd0081.photos.203561p">https://www.loc.gov/pictures/item/sd0081.photos.203561p</a>