This report, prepared by State and Federal agencies under the aegis of the Pacific Northwest River Basins Commission, presents the results of comprehensive investigations of water and related land resources of the Columbia-North Pacific Region. The study appraises natural resources, projects future requirements and associated problems, and provides broad framework plans and programs for management and development of resources to the year 2020 and the intermediate years of 1980 and 2000. Also included is a general estimate of costs and a program of implementation. These framework plans and programs were based on available data and formulated using general relations, reasoned approximations, and the judgment of experienced planners. The framwork plans and programs outlined in this report are presented not as the final word of some governing body, but as a compendium of measures which, after examination and critical discussion, have been thought by the study participants to contribute to a balanced use of water and related land resources.