ABSTRACT

The scope people expect of land and water resources planning and, perhaps to a greater degree, the goals toward which planners strive have greatly expanded. A high mountain watershed was selected because land and water management presents issues on which many people feel keenly in a setting where the relationships are relatively less complex than they are with the greater number of actors in more densely populated areas. The 160-square mile area tributary to the Blackfoot River at The Narrows centers on Upper Valley, an area of riparian grasslands about two miles wide and ten miles long running in a general north-south direction. The total watershed is divided into land planning units, the smallest practical areas for which a use can be selected according to area attributes. The power of the modeling process for planning land and water use lies in its capabilities of displaying: value judgment consequences and tradeoffs.