Spruce Tree House

Rights Managed

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A Park Service ranger explains ceremonial use of a kiva at Balcony House while conducting a guided tour for visitors to Mesa Verde National Park, Colorado. This tour is called the most adventuresome in the park because participants have to crawl 12 feet on hands and knees through an 18-inch wide passage way and climb a 32-foot ladder to gain access.

Frank Zullo / Science Source