Rochers des Mourres

Rochers des Mourres is a cluster of striking limestone formations on the edge of Forcalquier, a small town in the Alpes-de-Haute-Provence. Blocks shaped like heads, mushrooms, arches and natural bridges rise straight out of a grassy hillside, giving the site a look that's easy to mistake for something sculpted by hand.

How did these rocks form?

The story starts around 25 million years ago, when a lake covered this area. Along its shores, colonies of aquatic plants and algae bound loose limestone sediment into dense, hardened masses, while the surrounding material stayed soft and muddy. Over millions of years, erosion stripped away the softer sediment, leaving behind only what had hardened — isolated blocks now standing above the ground. The result is genuinely strange: some blocks resemble faces or animal heads, others form arches or mushroom-like caps, and the shapes you see largely depend on your own imagination.

How do you get there?

The starting point is the tourist office in Forcalquier, from which a marked loop trail climbs into the hills surrounding the town. The circuit covers roughly 6.4 km and takes about 2.5 hours at a walking pace. After reaching the rock field, the path loops back through olive groves and finishes by passing through Forcalquier's historic, protected cemetery — an unusual but memorable stretch near the end of the walk.

What should you know before visiting?

The Mourres sit within an Espace Naturel Sensible, a protected natural area, and form one of roughly sixty geosites making up the Luberon UNESCO Geopark, managed by the Parc naturel régional du Luberon. Because of this protected status, a few rules apply: stick to marked trails, keep dogs on a leash, and don't collect plants, animals, or minerals or leave litter behind. These rules exist to protect the fragile vegetation and geology so the site stays intact for future visitors.

What will you see on site?

The rock field itself is compact but densely packed with formations — walking among the blocks usually takes no more than 20–30 minutes, though many visitors linger longer, picking out faces and shapes in the stone. From the higher ground you get a clear view over Forcalquier and the surrounding Luberon hills, making the Mourres a natural spot to pause during a longer loop.

When is the best time to go?

The trail runs through fully exposed terrain around the rocks, with no shade cover, so in summer it's best to set out in the morning or late afternoon to avoid the midday heat. Spring and autumn are the most comfortable seasons, with mild temperatures and the surrounding hills showing seasonal color. In winter the path can get muddy after rain, so it's worth checking the forecast before heading out.

Frequently asked questions

Is there an entrance fee for the Rochers des Mourres? No, access to the site and trail is free — as a protected natural area, there's no ticket booth or entry charge.

How long does the full loop take? The circuit from central Forcalquier is about 6.4 km and takes roughly 2.5 hours on average, depending on your pace and how long you spend exploring the rocks.

Can I bring my dog? Yes, but it must stay on a leash — that's one of the conditions for accessing this protected Espace Naturel Sensible.

Is the trail suitable for children? Yes, the walk doesn't require special fitness, though the ground around the rock formations is uneven, so keep an eye on younger children while they explore.