I still remember being at Border in the mid 70's regularly haveing 10 on the tote board (full up for the civil allocation) and hearing the military guys calling for backup because they had 2 on frequency and a third was about to be handed off to them.
Also remember the type 84, 85 and various other antennas all nicely camouflaged to hide the site from prying eyes in the sky, yet the entrance to the place was a small cottage/farmhouse with a parking lot outside for a 100 or so cars
