I couldn’t figure out if there is a way to derive rivers from the contour lines. I tried to convert a contour to dem by using the Create Tin, tin to Raster tools.
Then, I used the following tools in this order:
Raster calculation (setnull ("flowaccumulation",0))
Raster to polyline
But the result not seams correct and it displayed as in the screenshot
What might be the issue here?
may I need follow another or additional commands
Thanks in advance,