I need the length of the longest flow path within a watershed. I???ve established the watershed and used the ???Flow Length??? tool with the ???upstream??? option on a Flow Direction grid. I???m expecting the raster pixel at the outlet point to have a value that matches the length of the longest flow path ??? but that does not appear to be the case. Can anybody share what I might have done wrong, or what I need to do from here?
Thank You,
Jim
