Grasshopper River Generator

I want to create this riverscape table out of wood on a CNC milling machine. In the past, I tried making a riverscape table in Rhino when I didn’t understand what I was doing and in the end generated a shape with many errors.

Learning Grasshopper, I was able to use multiple curves in Rhino, linked to curve and loft functions in Grasshopper to generate a simple river generator. It is a tremendously easy algorithm and doesn’t represent all that I learned in the tutorials that I watched while I was learning.

I found these intro tutorials helpful: https://vimeopro.com/rhino/grasshopper-getting-started-by-david-rutten

Here are my notes: