Documents pertaining to naming of engineers and instructions on how to achieve goals of expeditions to Nueva Vizcaya and Sonora. Planning and settlement of port of Guaymas and Rio Yaqui as Principal areas for commerce and trade. Conquest thru war and pacification of Seris and Pimas Altos; detailed ethnography. After achieving these goals expedition to resume exploration up Rio Gila establishing town on banks preferably near Colorado River to serve as capital of Gila province; study natural resources in detail; find mines and other natural riches to attract settlers; wage war against Apaches to secure lands and make possible fluvial navigation. Area should serve as protection to other settlements to east and south of province. Letters about arrival of visitador general Galvez to Sonora on his way to California. (A. Dell'acqua, November 1987)

Documents relating minutes from correspondence from Elizondo to viceroy and answers to correspondence during 1768. (A. Dell'acqua, February 1988)

Documents relating to various issues by Head of expedition to Sonora. Capabilities of company of mulatos patrolling Mazatlan and nearby coast. Maritime transportation for troops of expedition. Maritime transportation for Jesuits being expelled; list of names of evicted. (A. Dell'acqua, February 1988)

Documents describing trek of military troops to Sonora; maritime transportation of troops; expedition taken by de Anza to reconnoiter Cerro Prieto in its entirety. Elizondo writes about delight to find governor Pineda, an old comrade in arms. (A. Dell'acqua, February 1988)

Documents relating to transportation of military personnel to Alamos for expedition to Sonora. Elizondo relates saving money by not buying horses but borrowing them in deal worked out with ranch owners along route. Discusses itinerary for transport of troops to California by sea; missionaries from colegio de Querataro to missions in Sonora. (A. Dell'acqua, February 1988)

Documents and correspondence between Elizondo and viceroy in regard to movement of troops from Mexico to Tepic to form expedition to Sonora; lists of personnel in different companies; problems with disease, desertion, food supplies and transportation. (A. Dell'acqua, February 1988)

Correspondence between viceroy and Elizondo regarding orders, appointments of military officers; itinerary and March of officers and other military personnel for expedition of Sonora and Sinaloa. (A. Dell'acqua, February 1988)

(A. Dell'acqua, February 1988)

Letters from Cancio to viceroy regarding movement of troops by sea and land for expedition to Sonora and California in preparation of attack on Cerro Prieto to pacify groups of rebel Indians. Cancio thanks viceroy for affirmation as capitan under protection of crown with full salary and honors. (A. Dell'acqua, February 1988)