There are three Sioux tribes with (parts or all of) reservations in ND:
- Spirit Lake (completely in ND and closest to UND)
- Standing Rock (straddles the border between SD)
- Sisseton-Wahpeton (just enough in ND for a casino on I-29 at the ND/SD border)
There are two other reservations in ND:
- Turtle Mountain (Chippewa) at the Canadian border
- Three Affiliated Tribes (Mandan, Hidatsa, Arikara) in western ND
Central Michigan has support of one of five Chippewa tribes in Michigan: good enough.
North Dakota has support of one (Spirit Lake) of three Sioux tribes in North Dakota: not good enough.
1/5 > 1/3: Must be that new 'NCAA' math.