Can anyone think of a tool to take a dtm with flow direction (done using spatial analyst hydrology tools) and create a series of lines showing flow direction for the entire extent.
There is a tool as part of the HEC-GeoDozer that does something similar but only for very small areas or else it crashes.
i have:
ArcView 9.3.1
Spatial Analyst 9.3.1
ArcHydro latest build for 9.3.1