arid Australia blue clouds country diminishing distance distant environment environmental erosion freshwater ground ground-water lake lake-side land landscape limited natural-environment natural-landscape outback patterns receding rural sand shrinking sky Soil surface surfaces texture textured textures trees vegetation water water-resources wetland reflections boulder height high mountain natural nature outcrop panorama rock Sardinia view Atmospheric phenomenon beak bird egret feather lighting Natural landscape neck Pelecaniformes atmosphere cloud daytime evening horizon tree agriculture grass grassland green plant summer sunlight Andalucia hike path Spain spanish track trail austere canada hard harsh ice Rockies snow beech biome deciduous England english Fagus forest Great Britain leaves spring Surrey Terrestrial plant trunk wood