801-1812 - Ruins of Ancestral Puebloans, Square Tower, dating from between 900 AD and 1200 AD, Holly Group, Hovenweep National Monument, Utah, United States of America, North America
801-1813 - Ruins of Ancestral Puebloans, dating from between 900 AD and 1200 AD, Holly Group, Hovenweep National Monument, Utah, United States of America, North America
801-1778 - Hovenweep Castle, Square Tower Group, Anasazi Ruins, dating from AD1230 to 1275, Hovenweep National Monument, Utah, United States of America, North America
801-1779 - Hovenweep Castle, Square Tower Group, Anasazi Ruins, dating from AD1230 to 1275, Hovenweep National Monument, Utah, United States of America, North America
801-1777 - Hovenweep Castle, Square Tower Group, Anasazi Ruins, dating from AD1230 to 1275, Hovenweep National Monument, Utah, United States of America, North America