To add to my previous message: Two important books for learning more about the indigenous people of particular jurisdictions within Nueva Galicia or Nueva Vizcaya are:
Gerhard, Peter. The Northern Frontier of New Spain. Princeton, New Jersey: Princeton University Press, 1982.
Powell, Philip Wayne. Soldiers, Indians and Silver: North America's First Frontier War. Tempe, Arizona: Center for Latin American Studies, Arizona State University, 1973.
Gerhard's book takes a close look at each jurisdiction, discussing the Indigenous groups, the date of contact, some population figures, encomienda stats, and jurisdiction changes.
Dr. Powell's book discusses the Mixton Rebellion and Chichimeca War, and the various indigenous groups (Zacatecas, Guamares, Guachichiles, Cazcanes, Otomi) involved in this war that encompassed Guanajuato, Zacatecas, Aguascalientes, Durango, and parts of Jalisco.
These books may be ina local library but I think they are out of print.