rock formation known as mondego bookshop on the riverbank hill with trees reflected in the water, penacova portugal

bank bookstore bussaco buçaco cliff coimbra countryside destination elevation environment erosion escarpment europe feature formation geological geology hill landmark landscape library livraria mirrored mondego monument mountain natural nature outdoor penacova portugal portuguese quartzite quartzites range reflected reflection river rock sandstones scenic sedimentology stone summer tourism trail travel vacation valley village