SEPTRIN

Lat 42 12' 59 " Long 1 02' 10" Location:
Follow a sheep track north west from the boggy area in the bottom of the depression below Pico del Moro. After walking 300m and climbing 100m the entrance is seen. The entrance is a large surface feature 4m by 4m with a small cliff at one side.

Description:
A handline is necessary to descend the snowslope from the surface. At the bottom, to the right is a small blind chamber. To the left duck under a small 'doorway' into a chamber. The immediate impression is of an old dry cave, with brown stalactite and collapsed reddish boulders. Traverse over a small blind pit to the head of the first pitch, which is 12 m in a clean shaft and leads to the head of the sloping ladder climb. At the bottom of the ladder the pot closed down with tight rift development to the left and right. To the right the rift is too tight but descends to the same shaft as the left. On the left a short vertical squeeze of 1m, in which stemples were placed to aid ascent, opens out onto a short pitch which twists down to a further pitch of 34m. Here the pot widens out; a large natural spike gives a feehang down the centre of the shaft. Again there is an abundance of brownish calcite. The pitch lands on a sloping boulder floor. This quickly leads to a parallel shaft, and the next pitch of 25m. The hang is from the corner of the shaft, but soon the rope is hanging free in the centre of a very large shaft, with deepeing blackness as the shaft widens. What appears to be a stream can be seen below; but this in fact a puddle on the spacious, flat, rocky floor. Water trickles down the shaft from an unseen inlet. A small trickle runs away at the bottom of the shaft into a rift which rapidly becomes phreatic, and a pool is reached at stream level. Unfortunately it was too tight to get into the pool, to see if the cave continues, without extensive hammering. Above the pool the rift finishes. An inconclusive end to a fine pothole.

  • Scanned survey
  • Retraced survey

    LUSS@lancaster.ac.uk