abstract appearance background canyon colored coloring colors coloured colouring colours contours contrast contrasts cracks fissures flaws gorge layered layers levels light lines natural ravine rock rock-face rockface rocks rocky rough rugged shade shadows shape shapes small-canyon steep stone stones strata stratum sunlight sunny sunshine surfaces texture textured textures walls boulders cascade landscape nature river stream Utah water waterfall Zion babble brook countryside erosion fountain fresh freshness Greece mountain papigo slice small lake village fields fire trees golden meadow summer yellow flowers