Good evening
I'm using ArcGIS 10.0 plus Arc Hydro tools v2.0.
After building: DEMReconditioning; AgreeDEM; Fill, i tried to generate the flow direction, but the result was an empty file (legend: 1, 2, 4, 8, 16, 32, 64, 128, 255 (see attached file)).
Thanks for the help.
Valter.