The Șureanu Mountains are divided into the Sebeș Mountains to the east and the Orăștiei Mountains to the west. In all, they cover an area of 1,585 square kilometres (612 sq mi). The highest peak is Peter's Peak (Vârfu lui Pătru), at 2,130 metres (6,990 ft);[1] other peaks are Șureanu Peak, at 2,059 m (6,755 ft) and Vârfu Negru, at 1,862 m (6,109 ft),
as well as Aușelu, Comărnicelul, Gropșoara, and Pârva peaks. They are primarily a highland with meadows and pastures, with very large forested area throughout the surrounding 1,200 to 1,400 metres (3,900 to 4,600 ft) high mountains. In the southern area of these mountains there is a limestone region with several caves, hills, and gorges.
Lake Șureanu (also known as the Bottomless Lake) is a glacial lake situated at an altitude of 1,737 m (5,699 ft), east of Șureanu Peak. It covers 0.5 hectares (1.2 acres), has length 100 m (330 ft), maximum width of 60 m (200 ft), and maximum depth of 7.4 m (24 ft).
The Șureanu Mountains are traversed by several rivers, mostly flowing north towards the Mureș.
The Cugir River has its source under Peter's Peak, at an altitude of 1,900 m (6,200 ft); it starts at the confluence of headwatersRâul Mare and Râul Mic in the town of Cugir.
The Orăștie River has its source near Zebru Mountain, at an altitude of 1,659 m (5,443 ft).