1. (1) The water-use classifications adopted for the Yellowstone River are as follows:

   1. (a) Yellowstone River drainage to the Laurel water supply intake (approximately at latitude 45.6545, longitude -108.7590) B-1

   2. (b) Yellowstone River drainage from the Laurel water supply intake (approximately at latitude 45.6545, longitude -108.7590) to the Billings water supply intake (approximately at latitude 45.7745, longitude -108.4778) except waters on the Crow Indian Reservation and the tributaries listed in (1)(b)(i) through (iii) B-2

      1. (i) Clarks Fork of the Yellowstone River drainage from source up to and including Jack Creek near Bridger B-1
      2. (ii) Mainstem of the Clarks Fork of the Yellowstone River from Jack Creek to the Yellowstone River B-2

      3. (iii) Tributaries to the Clarks Fork Yellowstone River from Jack Creek to the Yellowstone River except the portion of West Fork of Rock Creek listed in (1)(b)(iii)(A) B-1

         1. (A) West Fork of Rock Creek drainage to the Red Lodge water supply intake (approximately at latitude 45.1593, longitude -109.2779) A-1

   3. (c) Yellowstone River drainage from the Billings water supply intake to the North Dakota state line excluding waters on the Crow Indian Reservation and the Northern Cheyenne Indian Reservation and including the Big Horn River drainage except the waters listed in (1)(c)(i) through (vii) C-3

      1. (i) Yellowstone River mainstem B-3
      2. (ii) Pryor Creek drainage outside the Crow Indian Reservation boundary B-1
      3. (iii) Big Horn drainage above but excluding Williams Coulee near Hardin and excluding waters within the Crow Indian Reservation B-1
      4. (iv) Big Horn River mainstem from the Crow Indian Reservation boundary to Yellowstone River B-2
      5. (v) Tongue River (mainstem) from the western crossing of the Wyoming boundary and the Tongue River Reservoir to Prairie Dog Creek (approximately at latitude 45.2692, longitude -106.6243) B-2
      6. (vi) Tongue River mainstem from Prairie Dog Creek to Yellowstone River B-3
      7. (vii) Fox Creek drainage near Sidney B-2

Authorizing statute(s): 75-5-201, 75-5-301, MCA

Implementing statute(s): 75-5-301, MCA

History: Eff. 12/31/72; AMD, Eff. 11/4/73; AMD, Eff. 9/5/74; AMD, 1980 MAR p. 2252, Eff. 8/1/80; AMD, 1988 MAR p. 1191, Eff. 6/10/88; TRANS, from DHES, 1996 MAR p. 1499; AMD, 2002 MAR p. 387, Eff. 2/15/02; AMD, 2017 MAR p. 602, Eff. 5/13/17.