The SR-71 Blackbird continues to capture the public's imagination like no other aircraft on Earth even two decades after it was retired. Any new stories, video, pilot interviews, historical tidbit, or whatever about the jet are gobbled up like fine desserts by fans of the plane, or of just engineering, technology, and history, in general. Case in point the crazy photo above.
It shows a Blackbird with a Skunk Works tail-flash maneuvering relatively low over a populated area at twilight with full afterburner selected. The only way to capture such a shot was with high-speed, grainy film, but that quality actually adds to the photo's mystique, in my opinion. Multiple SR-71's wore the Skunk Works tail flash, so it is near impossible to understand what aircraft this was. Best guess was it was a test bird out of Palmdale towards the end of the SR-71's career, but that is just a wild guess.
https://www.thedrive.com/the-war-zone/30804/this-low-light-sr-71-blackbird-afterburner-photo-will-melt-your-faceUpdated Info on the photo at the link.