View of the cliff dwelling, Spruce Tree House, from the back porch of the Chief Ranger's Office. Spruce Tree House is one of the best preserved cliff dwellings in the park. Most of the walls, wood, and plaster are original. Archeologists have identified at least 120 rooms and eight kivas, making this the third largest cliff dwelling in the park. By the late 1270s, up to 19 households (60 to 80 people) lived here.