Ключевые слова: background, beautiful, board, boulders, bush, bushes, destination, entrance, entry, entry point, entry road, environment, green, landscape, lewis and clark caverns, lewis and clark caverns np, montana, mountain, mt, natural, nature, outdoor, outdoors, park, parks, pathway, peaceful, road, rock, rocks, rocky, scenery, scenic, shrub, sign, signage, signboard, state park, stone, stones, tranquil, travel, tree, usa, view, walkway, welcoming, wood, woods,