This is a little watershed from where the White River start.
To the northern side of this hill, is the White River which flow to the Klipkopje dam whereafter it turns to the South.
To the South side is an unknown tributery which later joins the White River at the Longmere dam.
Watershed
The geographic area that contributes runoff to a stream. It can be outlined on a topographic map by tracing the points of highest elevation (usually ridge crests) between two adjacent stream valleys. The watershed of a large river usually contains the watersheds of many smaller streams. Also referred to as a "drainage basin".
"Geology.com Dictionary"