Thanks for your extremely useful thread on troubleshooting ARCHYDRO. I've implemented your suggestions and I'm still getting the same error when I attempt to run the depression evaluation tool. I'm attempting to run this tool on a 1m LIDAR DEM about 650 mb in size, that has already been prescreened for small sinks. The tool will run up to the drainage area calculation step and then crash with the following message: System.Runtime.InteropServices.COMEXCEPTION (0x80041098): Error 010316: Unable to open the input raster: C:\USERS\DAN\APPDATA]LOCAL\TEMP\ARCFFE6\AH2015~1\G_G2011 Any thoughts on what might be causing this error? Thanks so much Dan
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