Madan is a part of Ardino Ridge, sloping down to the northeast between the rivers
Arda and
Varbitsa. In the central part of the Yellow Share rise the peaks Buchovitsa (1404 m), Veternitsa (1372 m) and Petrovitsa (1309 m). The end of the ridge is Alada Peak (1241 m). From all sides the Yellow Share is separated by mountain-spurs, whose segmentations gradually slope down and vanish into the valleys of the rivers. The river system of the region is presented by the basins of the upper reaches of some of the longer rivers – to the north the basin of the Arda River with the headers Elhovska and Chepinska Rivers. ==History and population==