This is really high on the priority list of tribal concerns. This is a cash cow in many circumstances, and tribes are concerned about protection of tribal assets.
The Missouri is, perhaps, different in appearance and character from all other rivers in the world; there is a terror in its manner which is sensibly felt, the moment we enter its muddy waters from the Mississippi.
Remember that a painting - before it is a battle horse, a nude model, or some anecdote - is essentially a flat surface covered with colours assembled in a certain order.