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Otjikoto Lake

Coordinates: 19°11′41″S 17°32′59″E / 19.19472°S 17.54972°E / -19.19472; 17.54972
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Otjikoto Lake
Otjikoto Lake is located in Namibia
Otjikoto Lake
Otjikoto Lake
Coordinates19°11′41″S 17°32′59″E / 19.19472°S 17.54972°E / -19.19472; 17.54972
Basin countriesNamibia
Surface area0.51 hectares (1.3 acres)[1]
Average depth45 metres (148 ft)
Max. depth91 metres (299 ft)
Water volume229,500 cubic metres (8,100,000 cu ft)

Otjikoto Lake is the smaller of only two permanent natural lakes in Namibia. It is a sinkhole lake that was created by a collapsing karst cave.[1] It is located 20 kilometres (12 mi) north-west of Tsumeb and only 100 meters from the main road B1. The lake was declared a national monument in 1972.[2]

The diameter of the lake is 102 metres (335 ft); its depth is supposedly more than 91.44 meters, according to scans. According to a Namibian tourism information organisation,[3] "the depth varies from sixty two meters at the side to one hundred meters in the center - and in some places leading off from the side - depths of one hundred meters have been recorded", while an article in the Allgemeine Zeitung[4] explains the depth problem: "the lake tapers into a lateral cave system making it impossible to determine its exact depth, estimated to be in access (sic) of 142 meters."

The lake was known to the San under the name Gaisis ("ugly"). When the Herero moved into the area, they named it Otjikoto (Otjiherero: "deep hole"). Namibia's Oshikoto Region, in which the lake is situated, is an alternative spelling of Otjikoto and derives its name from that of the lake.[5] The first Europeans to discover the lake were Francis Galton and Carl Johan Andersson, who during their search for Lake Ngami came upon Otjikoto Lake in 1851.[6]

The lake was a dumping ground for German Schutztruppe during World War I; in June 1915 German troops dumped war materials in the lake before surrendering to stop the South African and British troops from using them. Most of the larger pieces have been recovered and are displayed in the Tsumeb Museum, but at least two cannons, along with quantities of ammunition, are still in the lake[7] and can be viewed with a special diving permit. According to legend, the Germans also dumped a sealed safe into the lake. The search for it and the 6 million gold marks it is said to contain has as yet not been successful.[6][8]

Botanist Kurt Dinter visited the lake in 1911 and collected several hitherto unknown species of plants, among them grass of the genus Rottboellia.[2] Tilapia guinasana, a species of cichlid fish which naturally was only found in Otjikoto's sister lake, Lake Guinas, was introduced to Otjikoto Lake.[9] The claim that Lake Guinas is connected to Lake Otjikoto by caves is frequently made but not proven as yet.[1]

The entire lake

References

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  1. ^ a b c Irish, John (1991). "Conservation aspects of karst waters in Namibia". Madoqua. 17 (2): 141–146. Archived from the original on 11 December 2013. Retrieved 30 November 2013.
  2. ^ a b Voigt, Andreas (2004). National Monuments in Namibia: An Inventory of Proclaimed National Monuments in the Republic of Namibia. Gamsberg Macmillan. pp. 24–25. ISBN 9991605932.
  3. ^ "Lake Otjikoto A Window Into The Past". namibia-1on1.com. Retrieved 2012-06-06.
  4. ^ Springer, Marc (2009-05-27). "Descending into another world: Cave diving in Namibia". Allgemeine Zeitung. Retrieved 2012-06-06.
  5. ^ Heita, Desie (13 November 2015). "Oshikoto scores big in development budget". New Era.
  6. ^ a b "Otjikoto Lake & Lake Guinas". tourbrief.com. Retrieved 18 February 2011.
  7. ^ Monty Halls and the Kaiser's Gold, Channel 5 (UK), 25 Nov 2013
  8. ^ "About Monty".
  9. ^ Tilapia guinasana The IUCN Red List of Threatened Species: Tilapia guinasana
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