Mont., Wyo. Spar At High Court Over Water Treaty

Law360, New York (January 10, 2011, 4:35 PM EST) -- U.S. Supreme Court justices peppered representatives from Wyoming and Montana with questions Monday in their dispute over a 1950 water rights treaty regarding tributaries of the Yellowstone River, which flows from Wyoming north into Montana.

Montana launched the lawsuit against Wyoming in 2007, alleging its southern neighbor was violating the treaty by reducing the amount of water flowing north and making it more difficult for Montana farmers to water their fields.

The treaty protects pre-1950 water uses in both states, but because Montana is downstream from...
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