After spending two months looking at this:
Please excuse my sub-par camera phone image, but I think it does a sufficient job illustrating the difference in water supply between southern Utah and western Montana/North Idaho.
Actually I'm being a little unfair because Utah has been getting an unusual amount of rainfall this June so it's actually a bit greener than the above picture (which is not current), but Orderville is still the desert. No matter how green the grass and sage brush and juniper trees, it's still just grass and sage brush and juniper. I always love the moment when I'm driving through Montana and I realize I'm surrounded by real trees again.