fall colors cover the slope of a mountain with the rugged peaks of the north cascades

alpine amazing america autumn backcountry beautiful beauty blue boulder cascade cascades cascadesn clouds color colors cover covering evergreen fall field fir forest formation geology glacier grass hiking igneous landscape meadow mountain mountains national nature north outdoor panorama panoramic park peak peaks plant range red rock rugged sauk scenery scenic season skagit sky slope snow stunning summit top tourism trail travel tree valley view volcanic washington wilderness