4.3K views · 241 reactions | Watch what happens when rocks fall at Cliff Palace. This is from August, when we closed down tours to spall off loose rocks above Cliff Palace. All of these sandstone alcoves are unstable, and small pieces often fall. When bigger rocks threaten, we try to knock them loose. Sometimes, the threatening rocks are so large that we have to close down whole alcoves. That's why Spruce Tree House is closed this year. (sdb) | Mesa Verde National Park | Facebook

Come take a look into the lives of the Ancestral Pueblo peoples who made Mesa Verde National Park their home for over 700 years, from 600 A.D to 1300. Explore some of the most notable and best-preserved cliff dwelling ruins in the United States that are more than 800 years old. The seasoned guides of Durango Rivertrippers & Adventure Tours will give you a personal guided trip of the park! | Visit Durango