abstract abstracts America black blue boulder boulders cascade cascading chute cloud clouds cold colors cool cream direction directional evidence based falls fast moving Great Smoky Mountains National Park green healng health Health Care healthcare hill hillside journey Landcapes lines low shot mountain mountainous movement National Parks new overcast pattern patterns peace peaceful position pouring rapids reflection ripple ripples Roaring Fork Motor Trail rock rocks rocky rushing Seasons serene shade shape shapes sooth soothing splash splashing spray Spring stream streaming strong sunlit Tennessee texture textures travel United States of America vacation vertical water waterfall waterfalls waterscape weather weathered white wide shot