I’m working on the river mouth and the ocean right now, but I thought I’d share what the confluence area looks like. Portland is an inlaid shell rose. We don’t see much of the Willamette (because this is the Columbia stick), but it is represented by a wiggly “W”.
A few other pics of other sections. It’s difficult to get much of such a long, thin object in one frame. (click on images to enlarge)