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Magaliesberg (historically also known as Macalisberg or as the Cashan Mountains) is a mountain range extending west and north from Pretoria, Gauteng to just south of Pilanesberg (and the Pilanesberg National Park), and extending for some 50 km (31 mi) east of Pretoria where it peters out just south of Bronkhorstspruit. The highest point of the Magaliesberg is reached at Nooitgedacht, about 1,852 metres (6,076 ft) above sea level. A cableway reaching to the top of the mountain range is located at Hartbeespoort Dam, providing sweeping views of the Magaliesberg and surrounding area. == Geology == The Magaliesberg Range has a very long geological history. Its quartzites, shales, chert and dolomite were deposited as sediments in an inland basin on top of the 3 billion year old Archaean Basement Complex. This process of sedimentation lasted for about 300 million years. About 2 billion years ago, a massive upwelling of molten magma resulted in what is now known as the Bushveld Igneous Complex. The enormous weight of this intrusion depressed the sediments that lay beneath and tilted the sediments along the edges so that the broken escarpments faced outward and upward, and the gentler dip slopes inward. During the same period, these sediments were fractured and igneous intrusions of dolerite filled the cracks. With the passage of time these intrusions eroded, especially on the dip slopes, forming deep kloofs or ravines providing rock-climbing potential to modern man. SOURCESWikipedia