The Piatra Roșie Dacian fortified acropolis is part of the system of fortifications and settlements in the Orăștiei Mountains grouped around the Dacian capital Sarmizegetusa Regia. It is located on the territory of the Grădiștea Muncelului-Cioclovina Natural Park, on an isolated rocky massif, south-west of the royal fortress (link).
The Dacian fortress Piatra Roșie occupies an isolated peak, difficult to access. The fortifications are located on the upper plateau and on the eastern slope, and numerous artificial terraces, constituting the civil settlement around the fortress, have been arranged both on the hill, in places where the slope allowed (on the eastern and northern slopes) and in the valleys around of it.
Most of the limestone varieties identified at the masonry blocks on Piatra Roșie hill have been confirmed as coming from the historical quarry from Măgura Călanului, although there are still varieties highlighted here and not yet found in the geosite from Magura Calanului. However, research is underway for both perimeters.
