Povlen is a mountain in western Serbia, which is located about thirty kilometers southwest of Valjevo. It belongs wreath Valjevo Mountains are an extension of that Starovlaske highlands and extending west from Valjevo to flat Macva. Mountains are not very high – the highest point in the chain, Povlen, reaching up to 1,347 meters – but they are impassable due to dense forests and deep river canyons. In the canyon below Trešnjice Povlen settled griffon vulture where it is, along the canyon of the river Uvac, the only reliable seekers in the region. Another curiosity is possible to see the Povlen – unusual “spherical” walls, so-called. Povlen balls.