canada cliff conifer danger evergreen forest jagged mountains natural nature river rock Rockies rocky sharp tree wall water wood boulders conifers current fast flow landscape rapids rocks Rocky Mountains trees view fierce gorge power green lake mountain reeds shore snow boats cloud fjord gloomy gray grey norway norwegian panorama sombre Apulia beach coastline Gargano hillside Italy Puglia rural sea spring bridge dordogne farm fertile fields France french hills valley village woodland american baker boulder mount run rush stream usa bank Colorado.America fishing gravel sky trout countryside creek England Great Britain margin pond reservoir Sussex alps autumn fall Lense Flare meadows star sun sunbeams sunlight