Came across this. Some routes and discussion of the Picos region
http://walkaboutwanderer.com/drivin...hpgpNAv0CoODHZWEjV2oI-wfXee8yoJLFOWHb1Apq-fDk
http://walkaboutwanderer.com/drivin...hpgpNAv0CoODHZWEjV2oI-wfXee8yoJLFOWHb1Apq-fDk