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Die ontstaan van grotte en holtes in die kranse van die Clarenssandsteenformasie in die Golden Gategebied. (The origin of the caves and hollows in cliffs of the Clarens sandstone formation in the Golden Gate area.)
(supprimer)
Die ontstaan van grotte en holtes in die kranse van die Clarenssandsteenformasie in die Golden Gategebied. (The origin of the caves and hollows in cliffs of the Clarens sandstone formation in the Golden Gate area.)