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Aralsor SG-1 (in the Pre-Caspian Basin of west Kazakhstan) and Biyikzhal SG-2 (in Krasnodar Krai), both less than 6,810 metres (22,340 ft) deep, preceded Kola SG-3, which was originally intended to reach 7,000 metres (23,000 ft) deep. [2] Drilling at Kola SG-3 began in 1970 using the Uralmash-4E, and later the Uralmash-15000 series drilling rig.
Its volume is 119,349,000 m³ and the area of its opening is 274,000 m 2. This material has been dissolved and carried away by the river. The sinkhole is a doubly nested structure—the upper bowl is 320 meters (1,050 feet) deep, the lower bowl is 342 meters (1,122 feet) deep, and the two bowls are on average 257 to 268 m (843 to 879 ft) across.
Krubera-Voronja cave is inhabited by endemic species, including four springtails discovered during the CAVEX Team expedition of 2010: Anurida stereoodorata, Deuteraphorura kruberaensis, Schaefferia profundissima, and Plutomurus ortobalaganensis; the last of these is the deepest terrestrial animal ever found on Earth, living 1,980 metres (6,500 ...
This is a list of places on land below mean sea level. Places artificially created such as tunnels, mines, basements, and dug holes, or places under water, or existing temporarily as a result of ebbing of sea tide etc., are not included.
Parker Dam is a concrete arch-gravity dam that crosses the Colorado River 155 miles (249 km) downstream of Hoover Dam.Built between 1934 and 1938 by the Bureau of Reclamation, it is 320 feet (98 m) high, 235 feet (72 m) of which are below the riverbed (the deep excavation was necessary in order to reach the bedrock on which the foundation of the dam was built), [1] [2] making it the deepest ...
In Bangalore, smaller waterbodies 1-3 acre in size are called gokattes and waterbodies less than 1 acre are called kuntes. [11] The words kere and katte go back to usage by the Hoysala 's. [ 12 ] Kaluves can be translated as canals, [ 13 ] while in the context of Bangalore rajakaluves refer to bigger or large canals, channels or drains ...
One acre equals 1 ⁄ 640 (0.0015625) square mile, 4,840 square yards, 43,560 square feet, [2] or about 4,047 square metres (0.4047 hectares) (see below).While all modern variants of the acre contain 4,840 square yards, there are alternative definitions of a yard, so the exact size of an acre depends upon the particular yard on which it is based.
The 1,500 acre (6 km 2) lake has a conservation storage capacity of 27,000 acre⋅ft (0.033 km 3) with a flood-control pool of over 350,000 acre⋅ft (0.43 km 3). The reservoir inundated the abandoned roadbed of the Colorado and Southern Railway , a historic narrow gauge line active between 1874 and 1942.