autumnal forest at the foot of summit

alava araba areas autumn autumnal basque beech biodiversity biome bizkaia botany broadleaf brook burgos canyon castileleon castilla changes cliffs colors country deciduous directive ecology ecosystem europe european euskadi fagus fall fog foggy foot forest forests geomorphology gibijo habitat habitats karst karstic landscape leaf leon montane mountain mountains natural northern parque rocky scenic sea sierra southern spain stone summit sylvatica temperate top trees valderejo vallegrull