Avenc de la Torre del Telègraf

From Vallirana we will take the N-340 road towards Ordal, exit at the Urbanització Maset del Lledoner/Pedreres exit, and continue along the old N-340 road to the coll de l'Ordal and from there head towards the Telègraf quarry; before reaching it, on the right, a track leads towards Puig d'Agulles which we will leave, and a few metres further on, also on the right, there is a track in poor condition that reaches an abandoned quarry; we will pass the old control hut and a few metres beyond, beside the path, we will easily find this pit.

Currently (2025) the cavity has been deliberately filled in with rubble.