Tunnels

Some articles on tunnels, tunnel:

Ley Tunnel - The Origins of Secret Passage Myths
... Cornish Fogous, souterrains that are possibly Pictish, Roman and medieval sewers to smuggling tunnels, escape tunnels, siege tunnels, and the like ... On occasion, possible tunnels prove to be of purely natural origin, such as at Cleeves Cove cave in Scotland, or Kents Cavern in England ... Rarely, natural caves or tunnel systems can be of great extent the cave system with the greatest total length of passage is Mammoth Cave (Kentucky, USA) at 591 kilometers (367 mi) in length ...
List Of Rail Tunnels In India By Length
... This is a list of the longest rail tunnels in India ... In considering tunnels for this section, tunnels of underground metro railways have not been counted ... Only tunnels on the main Indian Railways network longer than 2,000 metres (6,600 ft) have been listed ...
List Of Canal Tunnels In The United Kingdom
... This is a list of canal tunnels in the United Kingdom ... Tunnel Canal Length Designer Coordinates Notes Image Ashford Tunnel Brecknock and Abergavenny Canal 375 yards (343 m) Thomas Dadford 51°53.195′N 3°16.525′W / 51.886583°N 3.275417°W ... Blisworth Tunnel Grand Union Canal 3,057 yards (2,795 m) Northamptonshire Braunston Tunnel Grand Union Canal 2,042 yards (1,867 m) Jessop Barnes 52°16.976′N ...
Surtshellir
... The roof of the cave is about 10 metres high at the highest point, and the tunnels are around 15m broad at their greatest width ... has been found in the form of the bones of sheep and oxen eaten for food in several of the tunnels one of the same tunnels had also been fitted with a human-made door ...
Leadville Mining District - Drainage Tunnels
... To more economically drain the mines, two tunnels were driven to allow the water to drain by gravity ... Water from both tunnels ultimately flows into the Arkansas River ...