Users are able to use the import google earth points to produce watersheds and this can be viewed in 3D view as well .
(For imported survey points, user can refer to Watershed Delineation in 3D view )
Therefore, without survey points, the watershed delineation can be produced for preliminary works.
For further explanation on how this can be done, user may refer to the video tutorial below;
Related blog post;
- Google Earth Import – refer to Earthwork User Manual; Section 1.5
- How to Get API Key for Google Earth Import
- How accurate is Google Earth Elevation