I want to quickly respond to this. That’s a great idea for an alteration, Holly! The ideal end for this course is to get to a place where everyone is confident in their ability to interpret each technique in a way that will benefit their land using as many locally available materials as possible. I’m attaching an image from the Big Hole of a log run down. This technique could easily be used to replace a Zuni Bowl in some situations if rocks are not readily available!