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and Lower Colorado River Basins. Concurrently ,the Bureau of Reclama- tion was engaged in a broad program of feasibility investigations of the projects discussed in this report and of additional projects brought to light with the idea of selecting those most feasible for ultimate develop- ment. In the Upper Colorado River Basin this program resulted in the development and authorization of the Colorac1,o River Storage Project and Participating Projects. In the Lower Colorado River Basin, investiga- tions were carried out on such projects as the Central Arizona Project which involved diversion of water from the Colorado River to the central Arizona area to sustain an established economy and construction of Bridge Canyon Dam and powerplant on the Cqlorado River and Coconino Dam for sediment retention on the Little Colorado River. Other projects investigated at that time include the Dixie Project in Utah, the Moapa Valley Project, the Ft. Mohave Project, and the Las Vegas Pumping Project in Nevada, the Hassayampa Project, Snowflake Project, and the Joseph City Unit of the Holbrook Project in Arizona. In addition, the feasibility of power development at the Marble Canyon site on the Colorado River below Glen Canyon Dam was investigated, but a report was not completed. With initiation of the Supreme Court suit Arizona vs. California, investigations in the Lower Colorado River Basin were curtailed and 'only' those projects which could reasonably be expected to be given considera- tion regardless of the outcome of the suit were continued under investi- gation, No new projects have been authorized. The fiscal year 1961 program in Region 3 of the Bureau of Reclama- tion includes the completion of the report on;the Middle Gila River Project involving construction of the Buttes Dam and' reservoir on the Gila River in the vicinity of Florence, Arizona, to provide supplemental water for 100,000 acres on the San Carlos Project and for flood control, sediment control, fish and wildlife enhancement, and recreation purposes. We are also updating the report on the Dixie Project, in Utah which would provide supplemental water to approximately 9,000 "cres of presently irrigated land and up to approximately 14,000 aCres 0+ new land along the Virgin River in the vicinity of St. George and SantaiClara, Utah, additional muni- cipal water supplies, generation of power, a'nd benefits from flood control, fish and wildlife and recreation. The report is scheduled for completion this fiscal year. In the State of Arizona the Bureau of -Reclamation has entered into a contract with the Arizona Interstate Stream Commission to make a co- operative investigation and inventory of Ariz:ona water resources and water I I i I i , , , , I ' I i i I I j i I -! - 24 - .