underground quarry operation

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• Operation Aqueduct — Country  United States Test site Nevada Test Site Period 1989 1990 Number of tests 11 T …   Wikipedia

• Oakeley Quarry — is a slate mine in the town of Blaenau Ffestiniog, north Wales. History Oakeley Quarry originated in 1818 when Samuel Holland leased a small quarry at Rhiwbryfdir farm. This venture was successful and was sold in 1825 to the Welsh Slate Company.… …   Wikipedia

• Maenofferen Quarry — The abandoned Maenofferen slate cutting mill, seen from the Rhiwbach Tramway No. 3 incline, 2007 Maenofferen Quarry is a major slate quarry in the town of Blaenau Ffestiniog, north Wales and one of the major users of the Ffestiniog Railway. It… …   Wikipedia

• Croesor Quarry — in 2007, showing the remains of the fan house by the main adit and the site of the mill …   Wikipedia

• tunnels and underground excavations — ▪ engineering Introduction        Great tunnels of the world Great tunnels of the worldhorizontal underground passageway produced by excavation or occasionally by nature s action in dissolving a soluble rock, such as limestone. A vertical opening …   Universalium

• Defense of the Adzhimushkay quarry — Part of the Eastern Front of World War II …   Wikipedia

• List of coalition military operations of the Iraq War — Operation Aloha redirects here. For the band, see Operation Aloha (band). Nordlicht redirects here. For the Kriegsmarine ship, see SS Nordlicht. Operation Falcon Freedom redirects here. For the United Nations Security Council Resolution 1973… …   Wikipedia

• coal mining — Coal was very important in the economic development of Britain. It was used as fuel in the factories built during the Industrial Revolution and continued to be important until the 1980s. The main coalfields are in north east England, the north… …   Universalium

• Carrière Wellington — The Carrière Wellington is a museum in Arras, northern France. It is named after a former underground quarry which was part of a network of tunnels used by forces of the British Empire and Commonwealth during the First World War. Opened in March… …   Wikipedia

• List of Minnesota state parks — …   Wikipedia

• List of Virtual Dungeon monsters — This is a list of fictional antagonist monster characters featured in the television series VR Troopers , specifically those commanded by the villain character Grimlord, who reside in the Virtual Dungeon. The footage of these characters is taken… …   Wikipedia