Bourke's Luck Kolkgate (II) Bourke's Luck Kolkgate (II) / / gallery 
20121104za12
Further along the Bourke's Luck potholes. The kolks (swirling whirlpools) occuring as the river Treur falls into the Blyde causes waterborne sand and rock to grind huge, cylindrical potholes into the bedrock of the river.
LOCATION: Mpumalanga province
DATE: Sun, 04/11/2012
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