"CARTWHEEL" Tower, Fort Reno, Washington, DC, 2020.
All the pixels, none of the continuity of government, at https://www.flickr.com/photos/mattblaze/49576247768
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this post was submitted on 03 Apr 2025
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Captured with the Rodenstock 23mm/5.6 HR Digaron-S lens (@ f/6,3), Phase One IQ4-150 back (@ ISO 50), Phase One XT camera (1/25 sec exposure).
This unassuming cylindrical tower, at first glance perhaps a grain silo or water tower, was part of a secret "continuity of government" microwave communications network. Built in the early 1960's, a network of similar towers located around the capital region linked the White House with critical sites such as Camp David, Raven Rock, and Mount Weather.
The upper white section of the tower is actually a plexiglass radome, concealing various microwave and UHF radio antennas.
CARTWHEEL and its cousins were decommissioned around 1990. Most of the towers, mainly atop mountains in remote areas, were demolished or left to rot. However, CARTWHEEL and CORKSCREW (on a mountain near the Appalachian trail in central Maryland) have been maintained in good condition, now repurposed by the FAA.
Despite CARTWHEEL being located in the middle of a residential neighborhood in a busy city and staffed by military personnel, officials went to great lengths to conceal the true purpose of these towers. They hid in plain sight, appearing to be silos or water towers (they even used civilian water trucks to send crews to some of the towers).
It was only after the cold war ended that the details of the network were declassified.
Obsolete secret infrastructure like CARTWHEEL tower, only revealed decades later, intrigues me not just for its scale and design, but also for the obvious question it gives rise to. If this stuff effectively managed to stay unnoticed for decades, what newer secrets are hiding under our noses today?
@mattblaze@federate.social This is some of my favorite stuff to nerd out on. Always had an interest in infrastructure in general, but infrastructure with a hidden purpose especially.