17MB PDF - Association for Mexican Cave Studies

contained a long, steep talus slope. There were many largeblocks of breakdown which made traversing the room more difficult.At the upper end of the slope a short passage leadsto a 66 foot drop, at the bottom of which is a de~d-end room.Rope is needed to descend this 66 foot drop, but not the 86foot drop. The latter drop can be avoided b~ climbing down thenortheast end of it. (See map and pictures.)Several hours were spent mapping the cave and afterwardsour group headed on towards the Inte~American Highway, continuingthe road log as we went. This new road which we were followingis cut into the mountainside overlooking Arroyo Seco.It passes through some of the most spectacular scenery in thearea and also through an area with some of the greatest cavepossibilities as well. By dusk we had completed the log andpaused at the Rio HUichihuayan to take baths. Continuing on toCd. Valles, we stopped only long enough to eat. The trip backwas uneyentful and we arrived in Laredo at noon Monday.43