[RWD version 1 ] Pyrenees 2013: From the more or less abandoned hamlet of Biados this route heads NE and the E to the col of Puerto de Gistain, 2609m. Navigation is straightforward however this was a difficult place to be the day we did it. There were large unavoidable snow fields. On one of these to the east of the col at around 2550m we were strung out on the slippery slope when a sudden thunderstorm occurred soaking us with wet hail and shaking us up with almost continuous lightning and thunder.