I need to find the basin of a small river and this is what I did:
- I found the drainage direction with r.watershed
- I used r.water.outlet to find the basin for the coordinates of the water outlet point.
The problem is that this works for some bigger rivers but not for the one I need.
I saw that in the output "stream" of r.watershed my river doesn't appear, could be it the problem? What can I do? Here the images of "accumulation" form r.watershe in which you can see the river and the images of "stream" where there river doesn't appear.