The Aztatlán tradition represented a widespread and relatively uniform cultural expansion along a broad stretch of Mexico’s western coastal region. The development of the Aztatlán cultural complex was based primarily on the comprehensive use of natural resources, which formed the backbone of its economy. It also relied on the production and control of high-demand goods and artifacts, as well as on active trade networks. Representative materials of this tradition include vessels decorated with painted and incised motifs, spindle whorls, and seals. This period also saw the emergence of new technologies such as metallurgy and the production of prismatic obsidian blades.

The collection also includes grinding tools associated with daily life, highlighting the significance of agriculture among the communities settled in the valleys of Compostela, San Pedro Lagunillas, Tepic, and Jalisco.