Opatřilka - Červený lom, Natural monument in Prague, Czech Republic

Opatřilka - Červený lom is a natural monument in Prague's Prokopske and Dalejske valleys with limestone cliffs and former quarry areas spanning about 8 hectares. The site displays various geological layers and different habitats, from exposed rock faces to vegetated slopes.

Limestone quarrying began in the early 1800s to supply building materials for local settlements and continued through the 1940s. This extraction activity permanently shaped the landscape and created the current rock formations.

The name Barrandien honors French geologist Joachim Barrande, whose work highlighted the scientific importance of this area. Today visitors can observe the rock layers directly and understand why this place drew scientific attention.

Access to the site is through marked hiking trails in green, with the main entry point at Reporyjskie Square reachable by public transportation. The area suits day visitors and the paths are generally open to walkers.

The cliff faces contain fossil remains from multiple geological time periods that have long fascinated scientists. These fossil deposits make the site special for anyone interested in paleontology and ancient life.