Pedras Parideiras da Serra da Freita

The granite rocks contain biotite-covered nodules spread throughout their surface, forming a rare geological formation within the Arouca Geopark region.

Scientists documented these geological structures over decades, determining their formation occurred through specific mineral compositions and weathering processes.

Local residents of Serra da Freita named these stones 'birthing rocks' due to the natural process of nodules detaching from the granite surface.

The Interpretation Center provides guided tours, exhibits, and a 3D film presentation about the geological formation from 9:30 AM to 5:00 PM daily.

The granite blocks release mineral nodules through natural erosion processes, a phenomenon found only in Portugal, Russia, and southern China.

Location: Cabreiros e Albergaria da Serra

Part of: Arouca Geopark

Opening Hours: 24/7

Website: http://aroucageopark.pt/pt/conhecer/geodiversidade/geossitios/pedras-parideiras

GPS coordinates: 40.85033,-8.28290

Latest update: May 15, 2025 11:49