Pueblo II

Pueblo II
Name	Pueblo II Period
Region	Southwestern United States
Dates	900 – 1150 CE
Majorsites	Chaco Canyon, Mesa Verde, Canyon de Chelly
Extra	Preceded by Pueblo I Period, followed by Pueblo III Period

Pueblo II. The Pueblo II Period, spanning approximately from 900 to 1150 CE, marks a significant era of cultural florescence and expansion for the Ancestral Puebloans across the Colorado Plateau. This epoch is characterized by major developments in architecture, settlement patterns, and regional interaction networks, most notably centered on the great houses of Chaco Canyon. It represents a peak in pre-Columbian cultural integration in the Southwestern United States before the dramatic transformations of the subsequent Pueblo III Period.

Overview

Following the dispersal of many Basketmaker III and Pueblo I villages, the Pueblo II era saw populations consolidate into larger, more complex communities, particularly in the San Juan Basin and on the Mesa Verde plateau. This period is defined by the rise of the Chaco Phenomenon, where Chaco Canyon emerged as a major regional center influencing a vast area known as the Chacoan system. Key contemporaneous cultures included the Mogollon culture to the south and the Hohokam to the southwest, with whom there was limited exchange. Climatic conditions during the early centuries, part of the Medieval Warm Period, were generally favorable for agriculture, supporting population growth and cultural complexity.

Architecture and settlement patterns

Architecture diversified significantly, featuring both small, dispersed homesteads and the construction of monumental "great houses" at Chaco Canyon sites like Pueblo Bonito, Chetro Ketl, and Hungo Pavi. These massive, multi-storied structures required sophisticated planning and labor organization. Across the region, people built contiguous roomblocks of jacal and masonry, forming plaza-oriented villages, while the iconic cliff dwelling architecture of Mesa Verde began to develop. Settlement patterns show a clear hierarchy, with outlying communities connected to central canyon sites by an extensive network of engineered roads, such as the Great North Road.

Material culture and technology

Pottery technology advanced with the widespread production of distinctive black-on-white ware, including styles like Mesa Verde Black-on-White and Chaco Black-on-White. Corrugated pottery, created by pinching the coils, became common for culinary vessels, improving heat transfer. The use of the atlatl persisted, but the bow and arrow was fully adopted for hunting and warfare. Turquoise was extensively worked at Chaco Canyon, sourced from mines like those at Cerillos, and used in elaborate jewelry and ritual offerings. Other crafts included fine basketry and the production of tools from obsidian sourced from the Mount Taylor area.

Society and organization

Society was likely organized along kin-based lines, such as clans, with emerging social differentiation suggested by the variation in burial goods and access to imported items. The scale of construction at Chaco Canyon implies a degree of centralized coordination, possibly under ritual or political leaders, though the exact nature of this authority remains debated. Community life focused on the plaza, used for ceremonies and daily activities, with subterranean kivas serving as central religious structures. The Chacoan system integrated dozens of "outlier" communities across the Four Corners region through shared ideology and monumental architecture.

Interaction and exchange

Long-distance exchange networks expanded dramatically, with materials flowing into Chaco Canyon from great distances. This included macaw feathers and copper bells from Mesoamerica via centers like Paquimé, obsidian from Wyoming and Idaho, and shells from the Gulf of California. The Chacoan road system facilitated the movement of both goods and people, integrating a vast region. While distinct from the Hohokam and Mogollon culture, there was cultural contact, evidenced by shared ceramic designs and the exchange of technological ideas. This interaction sphere extended across much of the Southwestern United States.

Decline and transition

By the mid-12th century, the system centered on Chaco Canyon began to collapse, a process likely triggered by a prolonged and severe drought that strained agricultural production. This climatic shift, marking the end of the Medieval Warm Period, led to social upheaval, increased conflict, and the eventual depopulation of the San Juan Basin by approximately 1150 CE. Populations migrated to areas with more reliable water, such as the Mesa Verde region, the Rio Grande valley, and Black Mesa, setting the stage for the defensive cliff dwellings and final florescence of the Pueblo III Period. This transition fundamentally reshaped the Ancestral Puebloan world.

Category:Archaeological cultures of North America Category:Ancestral Puebloans Category:Pre-Columbian cultures