Oposura

Oposura stands in the valley of the river later called the Moctezuma, in the mountains of eastern Sonora. Its name is of Ópata origin, and the valley was part of the homeland of Ópata-speaking communities. In the 1640s Jesuit missionaries established San Miguel Arcángel de Oposura alongside the neighbouring mission of Cumpas. The missions were among the settlements through which Spanish religious and political authority expanded into the eastern valleys.