de Alpan is located in Sierre de Guara natural park, in Aragon province of Spain. Less interesting that Barranco de Lumos
, his neighboring canyon, this barranco
work the descent to admire a big colapsed undercut, nice oscuros
The canyon requeres a rope of 50 meters or two ropes about 25 meters each. This barranco
flow only after a rain period and it is usualy dry most of the year with stagnant photoles.