Mesa Verde's cliff dwellings are a little crumbly in places ... it's easy to imagine the lives of the Ancestral Pueblo Indians who built these cliff houses 800 years ago. Ancestral Puebloans ...

Some 40 pueblos and cliff dwellings are visible from park roads and overlooks; some of these are open to the public. Beginning about A.D. 750, the ancestral Puebloans grouped their mesa-top ...