Because I am very old school and have the time, I had to recreate this rather than just modify it. Below is the "bare bones" columnar rocks, blue nodes and all. I did this so as not to get those annoying error messages about the trees, because I don't have those. haha
You can all laugh when I tell you it took me all day yesterday to do this, then finally found my error in my twist and shear shader where I left x value at 1.
Found out where noise is in functions, learned to create a group in variations, found the difference in scalar and vector constants....list goes on and on.
Thanks again for this share.