Oshara Tradition
Oshara Tradition, the northern tradition of the Picosa culture, was a Southwestern Archaic Tradition centered in the area now called New Mexico and Colorado. Cynthia Irwin-Williams developed the sequence of Archaic culture for Oshara during her work in the Arroyo Cuervo area of northwestern New Mexico. Irwin contends that the Ancestral Puebloans developed, at least in part, from the Oshara.Phases
This sequence defines no fewer than six phases of occupation, each identified by Projectile point forms and other less well defined artifacts.Sites
Oshara sites have been found near Denver, the Upper Gunnison River basin, and the Mesa Verde area of Colorado and in several sites in New Mexico and Arizona.