is there a way to extract the outline of the river from a DEM? I've already run the fill, flow direction, and flow accumulation tools but i'm not sure how to create the outline. any help would be appreciated. thanks!
Have you looked at...
Identifying stream networks—Help | Documentation
How Stream to Feature works—Help | Documentation
i did look at those documents and i tried making a stream but it didnt make an outline of the river. it make a bunch some lines that looked like the river outline but other places it completely missed or would run a line through the river