[GRASSLIST:2522] finding nearest downstream node

[Christopher Fonnesbeck]

Is there currently a function in the vector library for locating the 
nearest downstream (as in elevation) node on a stream network. I wanted 
to make sure before attempting to code one myself.

Thanks,
Chris
--
Christopher J. Fonnesbeck ( c h r i s @ f o n n e s b e c k . o r g )
Georgia Cooperative Fish & Wildlife Research Unit, University of Georgia