752 



H. A. BROUWER 



THE PILANDSBERG 



Where the ridge of the Magaliesberg quartzites — the direction 

 of which was southeast and northwest, to the north of Rustenburg— 

 bends again to the west, a mountain group arises from the rolling 







Fig. 2; — Geological sketch map of the Pilandsberg 



and undulating country of norites and granites. It has an almost 

 circular outline with a diameter of 15 miles from north to south 

 and 18 miles from east to west. Long ridges and isolated mountains 

 are separated by broad valleys, in which small rivers, dried up in 

 winter, have cut deep valleys with vertical walls. 



