Structure T31 of San Bernabe was a mission church during the Colonial period. Excavations revealed a number of burials and offerings. The church was built with little masonry and was presumably mainly composed of wood and thatch. The church’s outline was defined by human burials, though the northern portion of the church was bulldozed in the late 20th century. Excavations revealed several superimposed floors composed of lime and soil. Beneath the Colonial period church were Late Preclassic period occupation layers and a limestone quarry.