374 HIGH-LEVEL GRAVEL-CAPPED TERRACES 



parts. This terrace is considerably cut up by the eastern 

 tributaries of the Gouritz Kiver, but it is not divided 

 into a terrace and a plateau as is the case with the old 

 Zuurb raak terrace ; the unity of the whole is still pre- 

 served. The Nouga River has exposed admirable sec- 

 tions showing the terrace gravels lying unconformably 

 upon the Uitenhage beds, which there have a moderate 

 northerly dip. 



To the north of the Langebergen both the terraces 

 and the plateaux are well represented. The former can 

 be seen from the roads to Oudtshoorn from Mossel Bay 

 where they leave the mountains at Satfraan Kiver 

 (Kobinson Pass) and Doom Eiver (Montagu Pass). 

 The best example of a plateau in this district is the 

 Tafel Berg, between the Waterval and Bok Kraal 

 Kivers south of Buffel's Fontein, a wide table-shaped 

 area that does not deserve the name of Berg. It is 

 covered with gravels derived from the Langebergen, 

 from which it is now separated- by the Waterval River. 



In the Oudtshoorn-Uniondale-Willowmore area there 

 is a great development of high level gravels (see Plates 

 XXIII. and XXIV.). The watershed between the Oli- 

 fant's and Baviaan's Kloof Eivers is on one of them. 

 The present rivers for the most part run in deeply 

 eroded valleys cut down through the plateau gravels. 

 The mountains of that district, the Kouga and Baviaan's 

 Kloof Ranges, rise abruptly from the surface of the old 

 plateau. 1 



1 See Schwarz, G. C., viii., and T. S. A. P. S., xv., 1904, p. 43. 

 Papers read at joint meeting of B. and S. A. A. A. S., 1905, vol. ii., p. 

 56. American Journal of Science, xxiv., 1907, p. 185. 



