This is part of Hungo Pavi, an Ancestral Puebloan great house and archaeological site in Chaco Canyon, New Mexico.
The small logs coming out of the wall support the ceiling for the first story of the building, and the floor on the second story of the building.
Learn more about Chaco Canyon from my article http://www.thecreativescorner.com/%EF%BB%BFjeffs-new-mexico-adventures-chaco-culture-national-historical-park/
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