What you will read in this book is a distillation of over 25 years of on-the-ground experience working with and modifying the Yeomans Keyline Plan. From the back yard suburbs to 10,000-acre ranches and everywhere in between, from permafrost mountainsides just shy of the Arctic Circle, to equatorial boulder fields of East Africa, areas with 300 inches of rain per year to those with less than 3 inches, I have personally installed systems based on the Keyline design methodology and its modified forms. What you will read in this book is tried and true. It is intended to give a sufficient background to any landowner so that they can optimize their water resource for higher site productivity, have greater drought resistance and just as importantly, to know deep in their heart that they have made even one little piece of earth a little more life-filled, livable and green.