Mesa Verde National Park
Designated a national park in 1906, it is the largest archaeological preserve in the united States. There are approximately 4000 archaeological sites and 600 separate cliff dwellings at the site. Mesa Verde dates from 550 A.D. and was inhabited continuously until around 1300 A.D., when the Anasazi left the area for reasons unknown. At the peak of their time here, it is estimated that between 30,000 and 40,000 people lived here in 1100 A.D. Their stone cities were well preserved due to where they were built......in steep canyon walls, well hidden from the occasional traveler who may have drifted through the area on the mesa tops, above the dwellings. A wonder to behold, you really feel like you are stepping back in time when you walk through these structures. A pristine and almost perfectly preserved national treasure.