States that Yaquis, Mayos, numbering 12 thousand armed men, peaceful, industrious in past (notes work in mines), but now robbing haciendas, ranches surrounding area. Describes several unsuccessful campaigns against them, including capture 30 citizens Villa de Sinaloa, captured in supposedly loyal Pueblo Santa Cruz de Mayo, beaten, turned loose nude on foot. says Sinaloan forces inadequate to contain the sedition. Fears it will spread to Pimas Bajos, Tehuecos. says Sonoran forces tied down Apacheria. Request aid from Nueva Vizcaya, including 300-400 Tarahumara auxiliaries. Yaquis noted more of threat than Mayos. (T. Sheridan) (1976)

A review, by the lawyer of the council of Indies, of the events transpiring since announcement of discovery of silver in Pimeria Alta area- primarily administrative information; reports that have been sent, when received and current status. (R. Davis) (1977)

Viceroy Juan Antonio de Vizarron y Eguiarreta relays testimony taken by Audiencia of Guadalajara verifying discovery of silver in Pimeria Alta. (R. Davis) (1977)

Report by fiscal of Audiencia in Mexico City to crown confirming discoveries of silver and asserting the legal position of the royal authorities to regulate all future mining. (R. Davis) (1977)

Lengthy presentation mining law/technology/geological treasure or from mine. Because of distance, viceroy, fiscal decide to leave judgment up to Anza. Mentions that Yaqui (Hiaqui) Indian first discovered silver. (T. Sheridan) (1976)

Account contradictory assays to determine whether silver balls from Arizona from natural vein or treasure. Viceroy's belief silver probably natural. (T. Sheridan) (1976)

King requests more information concerning silver discoveries Pimeria Alta. Reminds viceroy Crespo's unfavorable account territory/Indians (Apaches, Moquis, 12 other nations) between Pimeria, New Mexico. Reiterates need for junta to consider benefits/expenses northern expansion. (T. Sheridan) (1976)

Council reports assays had not determined whether silver treasure hidden from ancient times or from mine. de Anza ordered to make further investigations. (T. Sheridan) (1976)

Asks Torrenueva if he's received additional information concerning Mineral de Pimeria Alta from arizobispo virrey de Mexico. Torrenueva (February 10, 1738, on margins) replies he has not. (T. Sheridan) (1976)

Presentation of laws to govern the exploitation of the new silver potential of the Pimeria Alta area. Miners must publicly declare claims, register to pay the royal share and rules defining engineering of mines. (R. Davis) (1977)