rough mountain landscape with steep limestone slopes and green meadows

nature outdoors mountain cantabria valles pasiegos green meadow pastures grazing farmland farm ruin erosion lines limestone karst karstic gully cliff landform stratified rock rocky strata stratification glacial valley geology sediments layering steep vertical rough relief slope facies grass landscape resbaladero miera valle del spain grassland natural environment cattle spring cantabrian mountains wearing away slopes meadows northern