131 S.Ct. 1765 (2011) 563 U.S. 368 State of MONTANA, Plaintiff, v. State of WYOMING and State of North Dakota. Supreme Court of United States. No. 137, Orig. Argued January 10, 2011. Decided May 2, 2011. Headnotes YELLOWSTONE RIVER COMPACT — Appropriation Doctrine — Irrigation Systems Improvements — Detrimental Effect on Downstream Appropriators. Article V(A) […]