Ключевые слова: artificial, brown, carlsbad caverns, carlsbad caverns national park, cathedral, cave, cavern, ceiling, dark, darkness, deep, deposits, depth, detail, dripping, drops, geology, hanging, hiking, light, national park, natural, natural entrance, nature, new mexico, outdoor, railing, rock, sediment, stalactite, tan, tourism, trail, travel, underground, white, wilderness, winding,