Parks & GardensParks & GardensAllée couverte de la Pierre Turquaise
Saint-Martin-du-Tertre
Wander through Forêt de Carnelle to find Pierre Turquaise, a 4000-year-old covered alley where Neolithic builders stacked stones weighing tons. It's the largest of its kind in Île-de-France, hidden among ancient trees and walking trails.
Ancient megalithic necropolis
Neolithic burial site
4000-year-old monument
Forest hike destination
Tips
🪨"incredible how they stacked monoliths weighing tens of tons"
🌳combine with a longer forest hike — trails start at the parking lot
🪑picnic tables on-site, perfect for a post-exploration lunch
Allée couverte de la Pierre Turquaise
Saint-Martin-du-Tertre
Parks & GardensParks & GardensWander through Forêt de Carnelle to find Pierre Turquaise, a 4000-year-old covered alley where Neolithic builders stacked stones weighing tons. It's the largest of its kind in Île-de-France, hidden among ancient trees and walking trails.
Ancient megalithic necropolis
Neolithic burial site
4000-year-old monument
Forest hike destination
Tips
🪨"incredible how they stacked monoliths weighing tens of tons"
🌳combine with a longer forest hike — trails start at the parking lot
🪑picnic tables on-site, perfect for a post-exploration lunch