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]
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 Big Hole – a former diamond mine in Kimberley, dug to 240 m (790 ft) between 1871 and 1914, making it the deepest hand-excavated pit in the world. Now a museum. Now a museum. The Jagersfontein Mine – operating between 1888 and 1971.
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 ...
2022 Tierra Amarilla sinkhole – a 25 m (80 ft) wide and more than 200 m (700 ft) deep sinkhole appeared in the commune of Tierra Amarilla, Atacama Region of Chile close to the Alcaparrosa copper mine on August 1, 2022. The sinkhole continued to grow and stretched 50 m (200 ft) in diameter on August 8.
This list of deepest mines includes operational and non-operational mines that are at least 2,212 m (7,257 ft), which is the depth of Veryovkina 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.
Cliff collapses like this one in Del Mar in February 2021 are a reminder of how the California coast is an ever-changing line in the sand. (Jarrod Valliere / San Diego Union-Tribune)
The mine has been in production since 1906, and has resulted in the creation of a pit over 0.75 miles (1,210 m) deep, [5] 2.5 miles (4 km) wide, and covering 1,900 acres (3.0 sq mi; 770 ha; 7.7 km 2). It was designated a National Historic Landmark in 1966 under the name Bingham Canyon Open Pit Copper Mine. [2]