Tswaing is Tswana for Place of Salt (Saltpan in English and Soutpan in Afrikaans) and, strangely, is a National Museum, so designated to preserve a large meteorite crater. Why should that be strange you may ask? Well, Tswaing also comprises an approximate 2 000 hectare nature reserve complete with plains game.
This crater can be seen from outer space and is over 1 kilometre wide and 100 metres deep and is estimated to have been formed over 200 000 years ago when a stony meteorite with a diameter of between 30 and 50 metres hit the earth. Water in the crater comes from surface springs, ground water and rain water and is rich in dissolved carbonates and sodium chlorides.
Stone tools from the Middle Stone Age reveal that the crater was regularly visited by people from as far back as 100 000 years ago in order to hunt and collect salt. It is believed that Tswana and Sotho people also harvested the salt between 1200 AD and 1800 AD. Between 1912 and 1956, soda ash and salt was extracted in a commercial operation.
A pleasant picnic site under shady trees complete with braai facilities and toilets is the starting point for a fairly gentle and attractive 8 kilometre walk that leads to the crater floor. As a bonus, it is a good birdwatching destination with a good variety of waterbirds in the crater and Bushveld birds in the surrounds.
Approximately 35 kilometres north west of Pretoria, this potential World Heritage site is well worth a visit.
www.ditsong.org.za/tswaing.htm
www.hartrao.ac.za
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