National Geographic : 1948 Sep
a pl iol u illw aOuIC V RSIdu l151ou e by \SvillxIil IR. (Ill Balcony House, Clinging to Its Cliff Like a Swallow's Nest, Was an Impregnable Fortress Its only approach for the Indians was along a narrow ledge and through a cleverly fortified tunnel. Today's visitors must climb this 30-foot ladder to enter. A spring in the cave gives good water.