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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 ...
Pithole, or Pithole City, is a ghost town in Cornplanter Township, Venango County, Pennsylvania, United States, about 6 miles (9.7 km) from Oil Creek State Park and the Drake Well Museum, the site of the first commercial oil well in the United States. [3] Pithole's sudden growth and equally rapid decline, as well as its status as a "proving ...
John R. Park Homestead Conservation Area – Essex. The Park Homestead was a station on the Underground Railroad. [9][10] John Freeman Walls Historic Site – Lakeshore. [1][2] John Freeman Walls, left his enslavers in North Carolina and settled in Canada. The Refugee Home Society supplied the money to buy land and he built a cabin.
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 's physiographic provinces. The Coal Region of Northeastern Pennsylvania has abundant anthracite coal, a high-value energy source. The Geology of Pennsylvania consists of six distinct physiographic provinces, three of which are subdivided into different sections. Each province has its own economic advantages and geologic hazards ...