344 F.3d 940 Big Meadows Grazing Association, Plaintiff-Appellant,v.UNITED STATES of America, by and through; Ann M. Veneman, in her capacity as Secretary of the Department of Agriculture; Shirley Gammon, in her capacity as State Conservationist (for the State of Montana) with the Natural Resources and Conservation Service, an agency of the Department of Agriculture, Defendants-Appellees. […]