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The Raven Rock Mountain Complex (RRMC), also known as Site R, is a U.S. military installation with an underground nuclear bunker near Blue Ridge Summit, Pennsylvania, at Raven Rock Mountain that has been called an "underground Pentagon ". [3][4][5]: 2 The bunker has emergency operations centers for the United States Army, Navy, Air Force, and ...
Centralia is a borough and near-ghost town in Columbia County, Pennsylvania, United States.It is part of Northeastern Pennsylvania.Its population declined from 1,000 in 1980 to five residents in 2020 [8] because a coal mine fire has been burning beneath the borough since 1962.
The Centralia mine fire is a coal-seam fire that has been burning in the labyrinth of abandoned coal mines underneath the borough of Centralia, Pennsylvania, United States, since at least May 27, 1962. Its original cause and start date are still a matter of debate. [1][page needed][2][3][page needed] It is burning at depths of up to 300 ft (90 ...
a Pennsylvania Canal & coal mining ghost town, under the waters of Conemaugh River Lake. [29] Cold Spring: Lebanon County: Cold Spring Township: A township that has not had any staff or budget in the municipal government since the 1960s. [30] Concrete City: Luzerne County: Historic [31] Corduroy: Elk County: Highland Township: Located on the ...
An underground city is a series of linked subterranean spaces that may provide a defensive refuge; a place for living, working or shopping; a transit system; mausolea; wine or storage cellars; cisterns or drainage channels; or several of these. Underground cities may be currently active modern creations or they may be historic including ancient ...
Pennsylvania. Pennsylvania (/ ˌpɛnsɪlˈveɪniə / ⓘ PEN-sil-VAY-nee-ə, lit. 'Penn's forest country'), officially the Commonwealth of Pennsylvania[b] (Pennsylvania Dutch: Pennsylvanie), [7] is a state spanning the Mid-Atlantic, Northeastern, Appalachian, and Great Lakes regions of the United States.
Meadville is a city in and the county seat of Crawford County, Pennsylvania, United States. [7] The population was 13,050 at the 2020 census. [8] The first permanent settlement in Northwestern Pennsylvania, Meadville is within 40 miles (64 km) of Erie and within 90 miles (140 km) of Pittsburgh.
Harrisburg (/ ˈ h æ r ɪ s ˌ b ɜːr ɡ /, Pennsylvania German: Harrisbarrig) is the capital city of the U.S. commonwealth of Pennsylvania and the seat of Dauphin County.With a population of 50,099 as of 2020, Harrisburg is the ninth-most populous city in Pennsylvania.