Ключевые слова: asia, autumn, background, background material, canyon, chugoku region, circumstance, clear stream, east asia, eco, ecology, ecology image, environ, environment, fall, gorge, japan, landscape, material, nature, november, okayama, okayama prefecture, okutsukeikoku, ravine, river, sanyo local, scenery, setting, surroundings, texture, textured, valley, view, water,