Pueblo Bonito, Chaco Culture N.H.P., NM
Pueblo Bonito, the largest and best known Great House in Chaco Culture National Historical Park, northern New Mexico, was built by ancestral Pueblo people and occupied between AD 828 and 1126.
Pueblo Bonito is divided into two sections by a precisely aligned wall, running north to south, through the central plaza. A Great Kiva is placed on either side of the wall, creating a symmetrical pattern common to many of the Great Houses. In addition to the great kivas, over thirty other kivas or ceremonial structures have been found, many also associated with the large central courtyard. Interior living spaces were quite large by the standards of the Ancient Pueblo.
The site covers almost two acres (8,000 m²) and incorporates at least 650 rooms, with some estimates rising to 800. In parts of the village, the tiered structure was four and five stories high. During later construction, some lower level rooms were filled with debris to better support the weight of the upper levels. The builder's use of core and veneer architecture and multi-story construction produced massive masonry walls as much as three feet (1 m) thick.
It is possible that Pueblo Bonito is actually neither a village nor city. While its size has the capacity for a significant population, the environment may not have been ideal for sustaining a large population. Excavations at the site have not revealed significant trash middens indicating residential areas. A common suggestion is that Pueblo Bonito was a ritual center. This is not only evident in the existence of the kivas (which are more often than not attributed to ritual function) but also in the construction of the site and its relation to other Chaco Canyon sites. Although there were many occupants, only 50-60 burials were found here.
Examination of pack rat middens revealed that, at the time that pueblo bonito was built Chaco Canyon and the surrounding areas were wooded by trees such as Ponderosa Pines. Evidence of such trees can be seen within the structure of Pueblo Bonito, such as the first floor support beams. Scientists hypothesised that during the time that the pueblo was inhabited the valley was cleared of almost all of the trees, to provide timber for construction and fuel. This, combined with a period of drought, led to the water table in the valley to drop severely, making the land infertile. This explains why Pueblo Bonito was only inhabited for about 300 years and is a good example of the effect that deforestation can have on the local environment. The Anasazi, no longer able to grow crops to sustain their population, had to move on.
A multi-year field study, centered in Pueblo Bonito, has been launched in order to obtain new information on the economic conditions of the Bonito phase. The ultimate goal of this recent fieldwork is to obtain data that will enable researchers to examine the development of great house communities in respect to relationships between demographic change and economic productivity.
Pueblo Bonito, Chaco Culture N.H.P., NM
Pueblo Bonito, the largest and best known Great House in Chaco Culture National Historical Park, northern New Mexico, was built by ancestral Pueblo people and occupied between AD 828 and 1126.
Pueblo Bonito is divided into two sections by a precisely aligned wall, running north to south, through the central plaza. A Great Kiva is placed on either side of the wall, creating a symmetrical pattern common to many of the Great Houses. In addition to the great kivas, over thirty other kivas or ceremonial structures have been found, many also associated with the large central courtyard. Interior living spaces were quite large by the standards of the Ancient Pueblo.
The site covers almost two acres (8,000 m²) and incorporates at least 650 rooms, with some estimates rising to 800. In parts of the village, the tiered structure was four and five stories high. During later construction, some lower level rooms were filled with debris to better support the weight of the upper levels. The builder's use of core and veneer architecture and multi-story construction produced massive masonry walls as much as three feet (1 m) thick.
It is possible that Pueblo Bonito is actually neither a village nor city. While its size has the capacity for a significant population, the environment may not have been ideal for sustaining a large population. Excavations at the site have not revealed significant trash middens indicating residential areas. A common suggestion is that Pueblo Bonito was a ritual center. This is not only evident in the existence of the kivas (which are more often than not attributed to ritual function) but also in the construction of the site and its relation to other Chaco Canyon sites. Although there were many occupants, only 50-60 burials were found here.
Examination of pack rat middens revealed that, at the time that pueblo bonito was built Chaco Canyon and the surrounding areas were wooded by trees such as Ponderosa Pines. Evidence of such trees can be seen within the structure of Pueblo Bonito, such as the first floor support beams. Scientists hypothesised that during the time that the pueblo was inhabited the valley was cleared of almost all of the trees, to provide timber for construction and fuel. This, combined with a period of drought, led to the water table in the valley to drop severely, making the land infertile. This explains why Pueblo Bonito was only inhabited for about 300 years and is a good example of the effect that deforestation can have on the local environment. The Anasazi, no longer able to grow crops to sustain their population, had to move on.
A multi-year field study, centered in Pueblo Bonito, has been launched in order to obtain new information on the economic conditions of the Bonito phase. The ultimate goal of this recent fieldwork is to obtain data that will enable researchers to examine the development of great house communities in respect to relationships between demographic change and economic productivity.