El Forat Negre

El Forat Negre is a small cave in the municipality of Conca de Dalt, in Catalonia's Pallars Jussà region, located near the village of Serradell. Despite its modest size, the site draws attention from cavers and nature enthusiasts thanks to its distinctive rock formations and traces of past human presence.

What will you see inside?

The cave consists of a single gallery roughly 85 metres long. Short as it is, the passage reveals a layered history: the rock surfaces show that the cavity once acted as a channel for flowing water. Along the walls and floor, mineral crusts have built up over eroded terraces and inside gour pools — natural basins shaped by calcite rims. These features make Forat Negre a point of interest for anyone curious about how karst caves evolve over time.

What traces of the past has it revealed?

Excavations inside the cave uncovered material from two distant periods: the Eneolithic, also known as the Copper Age, and the medieval era. The finds suggest the cave was used intermittently across history, most likely as temporary shelter — a pattern common to many small caves scattered through the Pyrenees.

How do you get there?

Start at the parking area at the entrance to Serradell, a village within the Conca de Dalt municipality. From the parking spot, walk back along the road to the first bend, where a path branches off toward the Serradell spring, also known locally as Fresca. The route crosses a stream whose bed was altered by a landslide in July 2017, so take care when fording it. Beyond the crossing, the path climbs steeply toward the Roques de Llenaspres cliffs. Watch closely for a small trail marker on the right-hand side of the path — it points down to the base of the cliff, where the cave entrance opens up.

When is the best time to visit?

Given the steep approach and the stream crossing, spring and autumn tend to offer the best conditions, with moderate water levels and comfortable hiking temperatures. In summer, an early start helps avoid the heat on the sun-exposed stretches of the trail. Winter visits can be tricky, since snow and ice often make the steepest sections difficult to negotiate.

Who is this cave for?

El Forat Negre suits travellers interested in geology and regional history, as well as hikers looking for quieter trails away from the more crowded routes of Pallars Jussà. It is not set up for mass tourism — there is no lighting, no built infrastructure, and no marked path inside the cave itself. Visitors should bring their own light source, ideally a headlamp, along with sturdy trekking footwear.

Frequently asked questions

How long is the El Forat Negre cave? The cave is a single gallery approximately 85 metres long.

Were any traces of past inhabitants found inside? Yes, archaeologists found remains dating to the Eneolithic period and to the medieval era.

How do you reach the cave from Serradell? The route starts at the village entrance parking area, heads toward the Serradell spring, crosses a stream, and climbs steeply toward the Roques de Llenaspres cliffs, where a marker on the path indicates the way down to the entrance.

Do you need any special equipment? Yes — bring a headlamp and sturdy trekking shoes, since the cave has no internal lighting or tourist infrastructure.