Avenc M-17

The fissure is located in Montcortès, in the Baix Pallars. To get there from Senterada, head towards the Pobleta de Bellveí, where you take a narrow road on the right to the estany de Montcortès. From the E side of the lake, an asphalted track leads towards Peracalç; on reaching the junction with the track that goes to Montsor, take this track on the right, suitable for any vehicle, and after 1.7 kilometres you reach the flat area where the cavities are found. This flat area is on the left of the track and the spot is easily recognised because the track makes a sharp bend to the right and also on the right there is a large temporary pool of water used for animals to drink.

Identifying the cavities is quite difficult, since at present (2011) only the painted name remains on the M-1 and M-11; from the rest of the cavities any sign identifying them has disappeared, and the GEB does not report any kind of guideline followed in order to identify them. Therefore, except for these two cavities, for the rest it is unknown which coordinates correctly correspond to each of them; it has been considered appropriate to mark the rest of the cavities with coordinates located between M-1 and M-11, taking into account that except for the M-8, which is located a couple of bends before reaching the flat area, the rest of the cavities are located within a radius of less than 200 metres from this point indicated. In some cases the coordinates correspond to the entrances of holes, but it is unknown whether they correspond to the same ones. Approximate coordinates.