Can Antennas Have Their Own Post Office?

Turns out, yes they can. This remote mountaintop just outside of Los Angeles, is the largest antenna/transmitter facility in the county. Large enough, that it actually has its own post office. The office isn’t manned full-time, but someone keeps it open for business a certain amount of time each day. Engineers and other people can conduct their postal business right at the site. I’m guessing some pretty interesting items have passed through there over the years.