Here are the materials in Landreth v. United States (W.D. Wash.):
Most recent suit here.
Here are the new materials in Big Horn County Elec. Coop. v. Big Man (D. Mont.):
Prior post with additional briefing here.
Here are the materials in Dossett v. Ho-Chunk Inc. (D. Or.):
Here are the briefs in Hengle v. Treppa:
Lower court materials here.
Here is the opinion in Howard v. MMMG, Inc.: