St. Regis River (Montana)

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The St. Regis River is a tributary of the Clark Fork of the Columbia River in Montana in the USA. It begins at Lookout Pass on the Idaho/Montana border, flows east and ends 1.2 miles west of St. Regis, Montana at the confluence with the Clark Fork. Its drainage is 330 Sq. miles. The record high flow for the St. Regis River in Montana was recorded on May 19, 1954 at 11,000 cubic feet per second according to USGS gaging data.