Looking for icon name for River adjacency (Help needed)

[Auda]

Hi!
I usually love to name all the features that surrounds my cities like mountains, marsh, rivers, etc..
I've managed to get the proper icons for everything using the official icons of the game to create my own map labels:

But i miss an icon for Rivers, and i can't find the name of the icon used to show the river adjacency for commercial hubs.

Example: Look at "The Nile" in this pic

I want to use this icon for it:

It should be something like ICON_RIVER_ADJACENCY or something like that.

Anyone?? Thanks in advance