"The entry gate to the Delta-01 launch control facility compound"
NPS
Unknown date<div style="display: none;">Unknown date</div>
<a rel="nofollow" class="external free" href="https://www.nps.gov/media/photo/view.htm?id=1E9D4377-1DD8-B71B-0BF7ECD573A87529">https://www.nps.gov/media/photo/view.htm?id=1E9D4377-1DD8-B71B-0BF7ECD573A87529</a>