Chaco Culture National Historical Park
Chaco Canyon · Pueblo Bonito · Chacoan Great Houses
Pueblo II–III 850–1250 CE (Chacoan fluorescence 1020–1140)·Ancestral Puebloan (Anasazi) / Chacoan·🇺🇸 New Mexico, United States
About
About Chaco Culture National Historical Park
Chacoan canyon with 15 monumental Great Houses (Pueblo Bonito 650 rooms, 35 kivas) and engineered roads, built 850–1150 CE by Ancestral Puebloans as ritual and trade center for San Juan Basin, demonstrating astronomical alignment and core-veneer masonry.
Open questions
Mysteries & theories
Mysteries
- 01How canyon supported large population in marginal desert
- 02Purpose of straight Chacoan roads crossing terrain non-practically
Theories
- 01Ritual landscape rather than purely practical roads
- 02El Niño drought + deforestation caused abandonment 1130–1180
Theories are interpretations, not findings. The seal above tells you how much scholarly weight the place carries.
History
How it came to be
- Built
- 850–1150 CE (Pueblo Bonito main phase 850–1150)
- Period
- Pueblo II–III 850–1250 CE (Chacoan fluorescence 1020–1140)
- Culture
- Ancestral Puebloan (Anasazi) / Chacoan
- Purpose
- Ritual pilgrimage center, astronomical observatory and regional trade node (macaws, cacao, turquoise)
- Excavation
- Partially excavated
850–1150 CE (Pueblo Bonito main phase 850–1150)
Initial construction
c. 1418 CE
Abandonment
On the ground
Structures & features
36.0607° N · 107.9617° W · 1890 m · 3 mapped features
- 36.0607° N · 107.9617° W
Pueblo Bonito (largest Great House)
great house - 36.0572° N · 107.9614° W
Casa Rinconada (Great Kiva)
kiva - 36.0189° N · 107.9097° W
Fajada Butte Sun Dagger
astronomical marker
Gallery