Many forays from my home waters to the streams of the North Eastern Cape highlands, have got me thinking about the differences between those waters, and the ones nearer my home. The climate is drier up there, and the veld can be positively scrub-like compared to our lush, humid midlands of KZN.  The rivers also flow southward or south westward, whereas all the home streams flow towards the east.  We have a lot of Brown Trout streams here at home, whereas around Rhodes and Barkly East, the waters are mainly Rainbow waters.  Our rocks, especially in the lower reaches, are