ISO birth grandparents possibly twin cities area

My mother was born 1-9-56 in minnesota I believe close to the twin cities. My mother has ojibwe in her, has black/brown hair, green eyes, and tan skin. My mother is still alive, but is semi scared of getting her hopes up depending on if she ever finds her birth parents, and I really want to find my birth grandparents, thus searching for her/and me (if that makes any sense..) if any one knows anything, please do not hesitate to contact me. C.