Area 51 providers (including Russian providers and the IKONOS) are commercially available. These show the runway markings, base facilities, aircraft, and vehicles. When documents that mention the Nevada Test Site (NTS) and operations at Groom are declassified, mentions of Area 51 and Groom Lake are routinely redacted. One exception is a 1967 memo from CIA director Richard Helms regarding the deployment of three OXCART aircraft from Groom to Kadena Air Base to perform reconnaissance over North Vietnam. Although most mentions of OXCART's home base are redacted in this document, as is a map showing the aircraft's route from there to Okinawa, the
Virginia State Route 51 as a four-lane undivided highway that passes through the city's residential Westover Hills area. SR 51 parallels the north side of US 58 Business as the former highway follows the height of land between the Dan River to the south and the Sandy River to the north. East of Piedmont Drive, the state highway enters a commercial area where the highway reaches its eastern terminus at US 58 Business (Riverside Drive) a short distance west of the confluence of the two rivers. Virginia State Route 51 State Route 51 (SR 51) is a primary state highway in the U.S. state