abstract angles backdrop background barrier bolders boulders cemented coated concrete constructed cover covered erosion-prevention fitted hill mortar perspectives random randomly-coursed Rendered retaining-rocks retaining-wall rock rocks rocky rough rugged secure security slope sloping solid stone stone-walled stones stonework strength strong surface surfaces texture textures uneven variations variety wall walled well-built alps Dolomiten downhill Italy mountains skier skiing snow uphill winter female girl ski skies sport sports jump male man clouds cloudscape France grass landscape nature sky summer trees grassland mountain Natural landscape plain plant tree Austria woman debris hillside melt natural norway norwegian building door fixture house real estate roof window America baker cold engulf flow forest glacier grind icy path usa valley Atmospheric phenomenon cloud Ecoregion highland