Search results
Results From The WOW.Com Content Network
The Xiaozhai Tiankeng has been well known to local people since ancient times. Xiaozhai is the name of an abandoned village nearby and means "little village", and "Tiankeng" means Heavenly Pit, a unique regional name for sinkholes in China. A 2,800-step staircase has been constructed in order to facilitate tourism. [2]
This list of deepest mines includes operational and non-operational mines that are at least 2,224 m (7,297 ft), which is the depth of Krubera Cave, the deepest known natural cave in the world. The depth measurements in this list represent the difference in elevation from the entrance of the mine to the deepest excavated point.
Chuquicamata (/ tʃ uː k iː k ə ˈ m ɑː t ə / choo-kee-kə-MAH-tə; referred to as Chuqui for short) is the largest open pit copper mine in terms of excavated volume in the world. [citation needed] It is located in the north of Chile, just outside Calama, at 2,850 m (9,350 ft) above sea level.
The enormous pit in Tierra Amarilla, in the country's Atacama Desert region, measures 105-feet-wide (32 meters) and about 650-feet-deep (200 meters), according to Chile's National Geology and ...
East Pit of Sherman Mine in Temagami, Ontario, Canada. Adams Mine – abandoned mine in Kirkland Lake, Ontario; Athabasca oil sands – second largest proven petroleum reserve in the world as of 2013, located in northern Alberta along the Athabasca river. Barkerville Mine - Gold Mine near Wells, British Columbia
Considered one of the largest sinkholes (dolinas) in the world; Gruta do Centenário – a cave located in Mariana, Minas Gerais, the largest and deepest quartzite cave in the world, and second in the country in terms of unevenness; Lapa Terra Ronca – a dolomitic limestone cave inside the area of the Terra Ronca State Park in Goiás.
Dean's Blue Hole is the third-deepest blue hole in the world, with a depth of 663 feet. ... and its remote location makes it incredibly difficult to launch major surface-based operations ...
A survivor of a coal mine disaster in India has shared a harrowing account of the moments after the tunnel was suddenly engulfed by water. Ravi Rai was working in the mine in the north-eastern ...