Informe sobre Sinaloa y Sonora año de 1750 [manuscript].
Contemporary ms. copy of Rodr guez Gallardo s report of 1750 on problems in the provinces of Sinaloa and Sonora. Rodr guez Gallardo was commissioned in January 1748 by Viceroy Revillagigedo to investigate the causes of the deterioration of the northeastern provinces of Sinaloa and Sonora.
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