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United States National Radio Quiet Zone
Specific land area in which radio transmissions are heavily restricted / From Wikipedia, the free encyclopedia
38.375°N 79.5°W / 38.375; -79.5
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The National Radio Quiet Zone (NRQZ) is a large area of land in the United States designated as a radio quiet zone, in which radio transmissions are restricted by law to facilitate scientific research and the gathering of military intelligence. About half of the zone is located in the Blue Ridge Mountains of west-central Virginia while the other half is in the Allegheny Mountains of east-central West Virginia; a small part of the zone is in the southernmost tip of the Maryland panhandle.