I am currently mapping Lahar flows on Montserrat Island (as many have done before!). I have the Cost Distance analysis below, the circle is the origin and the triangle the destination. With a known destination a Cost Path analysis can easily be performed, however I would like to use the Cost Distance map below to automatically find the destination point, based purely on the the direction of flow from the origin/circle.
I was thinking of using a filter to include only edge cells of the raster, and then find the one with the lowest value, is there a way to do this?
Software: Arc GIS Desktop 10.5