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by 2000. Major urban centers would satisfy their additional water ~ requirements through the importation program and through treatment and recycling of waste water for some uses. Smaller communities would ~ fulfill their increasing needs by a variety of means, including further ~ surface- and ground-water development, desalting of brackish ground Ul water, and by importation. --.I Mineral Resources Adequate mineral resources are available to meet the expected increased production, $511 million in 1965 to $1.93 billion in year 2020 (1958 dollars). Water withdrawal requirements would increase from 105,100 to 357,200 acre-feet in this period while land requirements would increase from 76,000 acres to 223,000 acres. Environmental impacts of the mining and processing of ores will need to be minimized, especially with respect to air and water pollution, ecology and esthetics. Water requirements of the mineral industry may be met by direct diversion of imported water; by upstream developments on the basis ,that doWnstream rights would be met by exchange for imported water; or by continued ground-water development, where available. Recreation Recreation needs of the Region, above available supply, are projected to increase from 144 million recreation days in 1965 to 672 millionrec- reation days in 2020. Under existing legal, institutional, financial, and phySical 'constraints only about 42 percent of these needs can be met. To satisfy the remaining 58 percent of the needs will require elimination or modification of these constraints and ,a greater degree of Federal participation. Water-based recreation needs will climb to 193 million recreation days annually by 2020. Maximum water augmentation, development and 'Use, under the framework plan will supply a part of the water-based recreation needs. Land acquisition in the amount of 60,000 acres will be required to satisfy the non-Federal recreation needs. Fish and Wildlife The annual demand for fishing would increase from a 1965 level of 4.0 million man-days to 26.0 million man~days in year 2020. Multi- purpose developments authorized to be constructed by 1980, including the Alamo, Dixie, and Central Arizona Projects, have the potential to provide 1.2 million man-days of fishing annually. Numerous smaller fishing reservoirs are planned for construction by state and Federal agencies and many Indian Tribes that are expected to provide 2.0 million man-days of fishing annually by 1980. After 1980, proposed water v