Richard Olmstead
Steelhead
Speaking from the perspective of someone who has struggled to define Pacific Northwest formally based on vegetation cohesiveness (see Flora of the Pacific Northwest, 2nd Ed., UW Press), we include all of Montana west of a line roughly extending from Henry's lake and Madison River, north past Helena (barely excluding Helena) and up the eastern front of the Rockies to the Canadian border (and beyond, roughly following the BC, Alberta border). We included most of Idaho, excluding the Snake River plains and south, roughly an arc from Boise around to Henry's Lake. We particularly struggled with that area around Yellowstone and were a little conservative at drawing the line at the Madison and not going a bit further east to include the Gallatin, considering that there are elements of the Great Plains flora that creep up into that area.
I think this would be pretty much consistent also with respect to the nature of the fisheries. It would exclude some prominent Montana fisheries, including the Yellowstone, parts of the Missouri, and Gallitan, for example.


I think this would be pretty much consistent also with respect to the nature of the fisheries. It would exclude some prominent Montana fisheries, including the Yellowstone, parts of the Missouri, and Gallitan, for example.


