During the season visitors are accompanied from the park museum to the
various ruins by competent ranger naturalists. These men, well trained
in the social and biological sciences, make it their duty to help the
visitor understand the natural and archeological features of the Mesa
Verde. Because of the need of protecting the ruins and the somewhat
devious trails by which they are reached, no one will be allowed to
enter any ruin except Spruce Tree House unless accompanied by a ranger
naturalist.