I really enjoyed your presentation on Keyline theory and design at the Ecological Farmer’s Association of Ontario conference.  It was the clearest and most comprehensible explanation of keyline that I have experienced. It is a concept I’ve read about and also heard a presentation or two on  it over the years.  With your use of the marker it was an “on Hands” demonstration of how keyline design works and provided a 3 dimensional explanation.  Thank you!