The roof beams (ponderosa pine) of one of the many rooms in a wall of the Aztec Pueblo (New Mexico). Because of these wooden beams, Southwest archaeologists were able to determine the year in which the trees were cut through dendrochronology (chronological determination based on annual tree rings) and thereby to establish the year in which the building was constructed.

Wooden comb with 10 teeth, made of sharpened willow rods and yucca fiber. Length: 5.8 inches. Shiprock, west of Aztec (New Mexico), Anasazi Culture, CCP.
CCP = Museum Chaco Culture National Historical Park, Chaco Canyon (New Mexico)

Examples of Anasazi masonry. Wall with a dark sandstone frieze, 280 feet long, Aztec Ruins National Monument (New Mexico).

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