Hello,
If you were to take a certain elevation threshold (contour line) and select all area ABOVE that line, you might end up with a polygon that is essentially a mountain top. I work for a non-profit organization that works primarily in watersheds but we also work in places like the buffer area surrounding the Mt. Kilimanjaro National Park and the Foret des Pins in Haiti to restore and protect the land, where the project boundary is defined by an elevation threshold (roughly).
A couple questions:
1. What is this area called? It's somewhat of an aggregation of upper watersheds, but surely not called a "watershed"...
