The "Buffalo Commons" idea put forth in the 1980s lives on: a lightly populated area of the High Plains whose economy, at least partly, would revolve around bison.
The Buffalo Commons will be a restored and reconnected area from Mexico to Canada, where we humans learn to work together across borders that were artificial in the first place. The Buffalo Commons means the day when the fences come down. The buffalo will migrate freely across a restored sea of grass, like wild salmon flow from the rivers to the oceans and back. Settled areas can --like they do in Kenya-- fence the animals out, not fence them in.
That's the dream.