The Abisso Ancona, the first large chamber discovered in the Frasassi system, is large enough to contain the Milan Cathedral.
The caves were officially discovered by a group of speleologists from Ancona in 1971.
The park preserves the Temple of Valadier, a neoclassical sanctuary built directly into a cave mouth in 1828.
The karst system contains unique micro-fauna, including blind cave-dwelling crustaceans.
The name 'Gola della Rossa' refers to the distinct reddish hue of the limestone rocks in the southern sector.
Thermal springs exist within the system, releasing hydrogen sulfide that contributes to the cave's ongoing dissolution process.
The cave temperature remains a constant 14 degrees Celsius year-round regardless of outside conditions.
Parco Naturale Regionale Gola della Rossa e di Frasassi is a protected area in the Marche region spanning over 10,000 hectares. The park is home to the Frasassi Caves, one of the largest karst cave systems in Europe, featuring chambers that measure over 200 meters high. The landscape is characterized by limestone gorges carved by the Sentino River and steep canyon walls. Visitors can explore marked trekking trails that wind through Mediterranean scrub, beech forests, and rocky outcrops. The park also serves as a sanctuary for golden eagles, peregrine falcons, and rock partridges. Archaeological evidence within the caves dates human habitation back to the Paleolithic era. The park headquarters and visitor center are located in the town of Serra San Quirico. Geological formations in the area include massive stalactites, stalagmites, and crystal-lined pools. It is the largest protected area within the Marche region.
The view from the entrance of the Temple of Valadier looking back toward the canyon.
Wear layers even in summer, as the constant temperature inside the caves is significantly cooler than the exterior.
Ensure footwear has good grip, as cave pathways can be damp and slippery.
Check local weather forecasts for the park's higher trails, as fog can reduce visibility rapidly.
Do not attempt the rugged mountain trails without proper navigational tools and adequate water supplies.
The park is open year-round, but specific cave tour segments may close for maintenance or safety during heavy rainfall events.
