Obří skály, Mountain summit in Hrubý Jeseník range, Czech Republic.

Obří skály is a summit in the Hrubý Jeseník range formed by a frost-weathered rock wall 10 to 16 metres high on the north-west ridge of Šerák. The rock is staurolite schist, weathered into mushroom rocks, grooves, cap rocks and a rock window. Two rock groups about 470 and 475 metres long lie along the ridge.

Until the late 1970s dense spruce forest covered the summit until a powerful windstorm uprooted the trees and revealed the rock formations underneath. This natural clearing made the geological structures visible.

The name Obří skály means Giant Rocks, and the German historical name Ammichstein refers to the giant Amík. According to the legend, Amík bet with a neighbouring giant over who could throw a huge rock block farther; Amík lost and in his anger split the rock formation in two.

The summit is accessible via marked green and blue hiking trails from Ramzová station about 4.7 kilometers away. The route is well marked so visitors can easily follow the path.

The rock is a staurolitic mica schist, not granite; its weathering has carved mushroom rocks, grooves, caps and a rock window. A geodetic marker numbered 12 sits on the summit formation at 1081.57 m.