The term "Chacoan" refers to the culture and civilization that developed in the Chaco Canyon region of northwestern New Mexico between the 9th and 12th centuries. This society is known for its impressive architectural achievements, including large multi-story buildings made of stone and adobe, which served as ceremonial and residential spaces. The Chacoan people were skilled in agriculture, utilizing irrigation techniques to support their communities. Chacoan society was also characterized by extensive trade networks, connecting them with other cultures across the Southwest United States. They created a complex system of roads and pathways, facilitating the movement of goods and ideas. The decline of the Chacoan civilization around the late 12th century is attributed to factors such as climate change, resource depletion, and social upheaval.