I'm looking to produce a drainage data set, as vector data, from SRTM tif file. I know I have done this before using the functions in the Hydrology toolbox. The trouble is, it was a long time ago and I can't remember the process steps. I'm sure I used Fill, Flow Accumulation, Flow Direction and Stream to Feature as well as the Raster Calculator in Map Algebra. Can anyone tell me the order in which I use the functions and the required expression in Raster Calculator. Thanks
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