Memorial of council of Indies to king relaying information on discovery of silver in the Pimeria Alta. Council suggestions are for corroborating reports to be requested and a junta of notables be organized in Durango to investigate and report. (R. Davis) (1977)

Review de Anza, Crespo informes. Consejo recommends that- 1) more information on quality /quantity Arizona silver deposits be gathered; 2) viceroy New Spain form committee to study proposal to extend northern frontier, conquer/reduce Indians there. Pimas, Moquis, Apaches mentioned. (T. Sheridan) (1976)

Forwarded report of discovery of silver in Pimeria Alta area announced by Juan Baptista de Ansa. (R. Davis) (1977)

Discusses de Anza, Crespo accounts silver discoveries Arizona, Indians- Pimas, Moquis, Apaches beyond missions. Suggest formation committee of practical and religious men to study propositions to extend frontier. Mention Sierra Azul. (T. Sheridan) (1976)

Account of official attempts to control silver discoveries Pimeria lata, determine quality deposits despite popular belief immensity area's Mineral wealth, desire to conquer/ reduce Indians to north and discover new riches. Mention Mesa's propositions concerning mining district, future conquests. Skepticism viceroy concerning area's wealth. (T. Sheridan) (1976)

Correspondence concerning silver discoveries Sonora, failure viceroy New Spain to report on mines. Torrenueva's responses included on margins (September 14, 1737). (T. Sheridan) (1976)

Compilation testimony various individuals, including Mattias de Silva, Manuel Sanchez, presented by Joseph de Messa, who with Francisco Lonporia, discovered silver Arizona, concerning silver deposits, northern frontier. Description Arizona silver discoveries, mining boom, de Anza's embargo name of king. Criticism embargo, need for protection mining area closer than Santa Rosa presidio. Relation stories gold, silver, lakes of quicksilver land indios gentiles, pearls along Rio Colorado. Account docile Indians, including Pimas, Papagos, Seris, beyond missions, ease with which they could be reduced. (T. Sheridan) (1976)

Account own travels Pimeria, New Mexico 1725, 1731. Brief description geography area between Pimeria Alta, Moqui, inhabited by Apaches, 12 other naciones. Firm belief riches, existence diamonds, Sierra Azul. Mention deep impossible River separating Sierra Azul from New Mexico. States nothing of value found between Pimeria missions, Rios Gila and Colorado. Written in response to de Anza's proposed expedition. (T. Sheridan) (1976)

Informs ciespo discovery silver near Guebabi at Rancheria de Arissona (Arizona). Embargo placed on silver to prevent further disappearances. (T. Sheridan) (1976)

Further testimony of silver discoveries in the Pimeria Alta area, mine claims and registrations and regulations for mining the area, issued by Audiencia of Guadalajara. (R. Davis) (1977)