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A shallow tunnel - like the Paris metro - is dug, and then roofed over. A deep tunnel is bored.
a tunnel
It is 250 feet deep.
There is really no limit to how long a ants tunnel can get...but most of the time a ants tunnel can get to 3 to 5 feet deep into the ground...
skyscrapers
According to news reports, the Inner Harbor at Baltimore ranges from approximately 25 feet deep at center to approximately 30 feet deep at the northwest end of the channel.
Deep Creek Maryland runs from the town of McHenry down besides the Garrett Highway towards Deep Creek Lake. It is about 8 miles north of Oakland and near to the Wisp ski resort.
It is a space (a tunnel) through which nerves and tendons pass on the palmar side of the wrist that connects the forearm to the middle compartment of the deep plane of the palm.
Deep Shaft Mining is two tunnels going deep underground, on tunnel for the miners to come up and down and the other for the coal to be lifted up to the ground.
Depth (below sea level): 8m (12m below sea floor)8 x 23,000t concrete tunnel units, 120m long, 26m wide and 7.5m deep, cast in a specially constructed dry dock at Port Kembla
Ant Tunnel III: 1 rock Dangerous Steam: 1 rock Deep Ant Tunnel II: 1 rock The Tunnel That Lost Light I: 2 rocks The Tunnel That Lost Light II: 1 rock
Deep Water