Mattson v. Mont. Power Co.
Annotate this CaseThis appeal was the third in the course of this litigation. Plaintiffs were a group of landowners with properties on the shores of Flathead Lake and a portion of the upper Flathead River. Plaintiffs commenced this action in 1999 against Montana Power Company (MPC) and MPC's successor, PPL Montana, LLC, asserting claims of trespass, nuisance, a taking of property, and breach of easements. In Mattson II, Plaintiffs filed motions to certify the lawsuit as a class action. The district court granted the motions as to both Defendants. The Supreme Court vacated the district court's orders concerning class certification. On remand, the district court denied Plaintiffs' renewed motion for class certification. The Supreme Court reversed, holding (1) the district court erred in its application of Mattson II to the class-certification question under Mont. R. Civ. P. 23; and (2) the six criteria for certification of a class action under Rule 23 were satisfied in this case. Remanded with instructions to certify the class.
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