File:CVAFS FPS-118 Antenna Detail.jpg

Depicted place Oregon; Lake County; Christmas Valley Date 2005 Dimensions 4 x 5 in. Photographer Hicks, Robert Institution Library of Congress Prints and Photographs Division Washington, D.C. 20540 USA http://hdl.loc.gov/loc.pnp/pp.print Accession number HAER OR-154-N-2 Credit line Historic American Buildings Survey (HABS) Team.jpg This file comes from the Historic American Buildings Survey (HABS), Historic American Engineering Record (HAER) or Historic American Landscapes Survey (HALS). These are programs of the National Park Service established for the purpose of documenting historic places. Records consist of measured drawings, archival photographs, and written reports. This tag does not indicate the copyright status of the attached work. A normal copyright tag is still required. See Commons:Licensing for more information. Notes Significance: The Over-the-Horizon Backscatter radar network was an important physical and scientific product of the Cold War. From theories that had been conceived in the days of early long-distance radio transmissions, and building on over three decades of research into the subject, the network was a tremendous technological and military accomplishment. Although it was only starting operation as the Cold War was ending, the ability of a radar system to warn against low-flying aircraft at distances of up to 1,800 miles away was an amazing step forward in air defense. This structure is one of three transmitter antennas arrays at Christmas Valley Radar Station Survey number: HAER OR-154-N