Ключевые слова: autumn, beautiful, clark, clatsop, corps of discovery, country, environment, expedition, ferns, foliage, foot path, forest, fort, garden, green, hike, hiking, hiking trail, holiday, landscape, lewis, national, natural, nature, northwest, oak, oregon, outdoor, park, pine, plant, preserve, ravine garden sp, road, scene, scenery, scenic, spring, summer, trail, travel, vacation, walk, water, woodland, woods,