This rare and hard-to-find book measures 15-3/4" X 18-3/4" and is chock full of beautiful charts and illustrations which paint an incredibly complete picture of the California water system in the 1970's. The charts are backed by extensive text which covers this very topical subject in detail. A very interesting read in light of California's current water shortages, the changing climate and the resulting politics of this issue. This one owner book is like new.