Actually, it is not accurate to say there were no Indian tribes with Yaquis in them in Chihuahua. My grandma, Maria Pilar Amparan de Fierro Cerros was half Yaqui and half Apache. She was born at Santa Rosalia, Camargo on a ranch where the Amparan families owned a hacienda and worked many of the position on the Hidalgo de Parral and Camargo.
I have been told by one of my aunts who visited the area, that my grandmother's tribe is still there.
Maria Elena Amparan