Statement of Significance (as of designation - June 13, 1962):
Abo is the site of a large, unexcavated Pueblo occupied from late prehistoric times into the historic era. Abo typifies the period in which acculturation began in the American Southwest. A large mission church of red sandstone with adobe mortar was built in the 1630s to serve the Tompiros tribe, but by the 1670s the village was deserted because of the increasing strength of the Apache in the area. Ruins of the pueblo and mission are preserved in Salinas Pueblo Missions National Monument.