"On This Date in Cryptologic History" Calendar
1971: Two Rock Ranch (WWII monitoring station) closed.
30 June 1971: Two Rock Ranch, one of the West Coast monitoring stations during WWII, closed. Two Rock Ranch was the sister station to Vint Hill Farms on the opposite coast (in Virginia). See the link below for the ASA article about the closing, by Dave Shively. Photo is from the ASAlives.org site - referenced in the link below.
