Occurrence of Attributes in Original Text

The text related to the cultural heritage 'Chaco Culture' has mentioned 'Archaeological' in the following places:
Occurrence Sentence Text Source
[34] Archaeological and cultural evidence leads scientists to believe people from this region migrated south, east, and west into the valleys and drainages of the Little Colorado River, the Rio Puerco, and the Rio Grande.
After brief reconnaissance work by Smithsonian scholars in the 1870s, formal archaeological work began in 1896 when a party from the American Museum of Natural History based in New York City xe2x80x94the Hyde Exploring Expeditionxe2x80x94began excavating Pueblo Bonito.
In 1920, the National Geographic Society began an archaeological examination of Chaco Canyon and appointed Neil Judd, then 32, to head the project.
A number of multi-disciplinary research projects, archaeological surveys, and limited excavations began during this time.
To safeguard Chacoan sites on adjacent Bureau of Land Management and Navajo Nation lands, the Park Service developed the multi-agency Chaco Culture Archaeological Protection Site program.
It includes Chaco Culture National Historical Park, the associated sites at Aztec Ruins National Monument, and five additional protected archaeological areas.
Within the boundaries of the property are located all the elements necessary to understand and express the Outstanding Universal Value of Chaco Culture, including walls built of sandstone and mud mortar standing more than five storeys tall, pine roof beams, and well-preserved archaeological remains that provide a comprehensive picture of the Chaco culture, all having survived due to high-quality craftsmanship and the dry, remote location.
The property is comprised of the acreage to which the federal government had surface title in 1987 located within seven components: Chaco Canyon, formerly a National Monument (1907) and now Chaco Culture National Historical Park (1980); Aztec Ruins, a National Monument (1923, expanded in 1928, 1930, 1948, 1988); and five Chaco Culture Archaeological Protection Sites (1980).
The five Chaco Culture Archaeological Protection Sites are owned and managed for conservation by the Bureau of Land Management, a sister agency in the U.S. Department of the Interior.
The property is subject to a suite of federal laws protecting archaeological properties.