The Yaquis and Aztecs of Mexico look quite Asian but I think the Plains Indians and Cherokees intermarried with the Solutreans (Early Europeans) that were here before them (10,000 to 12,000 years ago). All tribes are not created equal. An easy way to size up the ancestry of Indians is to note the distance between shoulder and elbow. If they are close together meaning they have a short upper arm, they're probably related to Asian people. One thing I noticed about the tribes in Montana is they seem to interact with Indians of different tribes more than they do with whites.