Once past the small entrance, one enters a very low-roofed passage but which after a few metres opens out into a gallery of more comfortable dimensions for progression; it then takes on an increasingly steep incline until reaching the final chamber, filled by a series of large blocks, beneath which one reaches the point of maximum vertical penetration; towards the NE of this final small chamber, the floor begins to rise to emerge again into the upper gallery.

The narrow passage has become practically blocked with earth due to a badger or other mammal having made its den and lair there, requiring a complete clearing (Observation made by J. Pallisé and Ramon Sendra in May 2015).