Another view of Spruce Tree House in Mesa Verde National Park. Here you can see a ladder leading to an underground chamber, probably a “kiva” used for religious purposes, according to the anthropologists.
Spruce Tree House is the best preserved of all the cliff dwellings in Mesa Verde. Because they are made of the local, soft stone, coupled with mud for slurry and covering the stones, the Park Service does routine restorations on all the dwellings. This keeps them from slowly decaying and dissolving in weather and rain.