There is a wealth of information available for those interested in the missions of northern Sonora and southern Arizona.  Below are some links and suggested readings.

Websites

• Missions Initiative
• Tumacácori National Historical Park
• Mission 2000: Searchable Spanish Mission Records
• Documentary Relations of the Southwest Master Index
• University of Arizona Office of Ethnohistorical Research
• San Xavier del Bac Mission
• Patronato San Xavier
• The Patronato Blog
• Exploring Colonial Mexico
• Misiones Coloniales (In Spanish, this website documents colonial missions of Chihuahua)

Readings

• Eckhart, George B. and James S. Griffith, 1975.  “Temples in the Wilderness: the Spanish Churches of Northern Sonora: Their Architecture, Their Past and Present Appearance, and How to Reach Them.”  Monograph No. 3 of the Arizona Historical Society, Tucson.
• Griffith, James S., 1992.  Beliefs and Holy Places: A Spiritual Geography of the Pimería Alta. Tucson: The University of Arizona Press.
• Griffith, James S., and Francisco Javier Manzo Taylor, 2007.  The Face of Christ in Sonora/El Rostro del Señor en Sonora. Tucson: Rio Nuevo Publishers.
• Officer, James E., Mardith Schuetz-Miller, and Bernard Fontana, editors, 1996.  The Pimería Alta: Missions and More. Tucson: The Southwestern Mission Research Center.
• Simmons, Marc, 1991.  “Santiago: Reality and Myth.” In Simmons, Marc, Donna Pierce, and Joan Myers: Santiago: Saint of Two Worlds, Albuquerque: University of New Mexico Press.