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| In this shallow archeological unit, excavated out in the alfalfa field, a layer of lighter soil at the top of the excavated surface indicates the plow zone. This is the layer of soil turned over each time the field is plowed or disked. Much of the original deposit containing remains of the mission had been disturbed by farming activities over the past century. Hall estimates that, with another 20 years of plowing, all original remnants of the mission, such as filled pits and post stains, would have been destroyed. |