Wyoming wants high court to dismiss Montana Lawsuit

Wyoming will ask the U.S. Supreme Court to dismiss a lawsuit filed by Montana over the two states’ water rights to the Powder and Tongue rivers.

Wyoming State Engineer Pat Tyrrell, who was in Gillette on Thursday, said that Montana’s claims that Wyoming is unfairly taking more than its legal share of both surface and groundwater from the Powder and Tongue rivers before they cross into Montana is “not relevant.” In fact, the compact that governs water rights between the two states — the Yellowstone Compact of 1951 — does not address groundwater flows at all, he said.

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