From the summary and conclusions ... 'This report describes guiding principles defining the what, why, and where of economical fuel reduction in the northern Rocky Mountain region. It includes comments concerning the when and how although it does not treat these subjects in full. As alternatives the results indicate those situations where more and better manpower, facilities, etc. for presuppression and suppression are likely to be more economical than fuel reduction. The study is confined to the ten western forests of this region because those forests represent the most typical bad fuel problems and because they are the only source of adequate fire records and other evidence concerning the effects of bad fuels.'