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As early as 1867, bills were introduced in Congress to encourage irrigation and reclamation of unproductive land and, in 1877, the Desert Land Act linked irrigation to grants of public land. Congress also authorized studies of the Westâs geology and water supply, which culminated in comprehensive reports.
The Dawes Act reduced Native American landholdings from 138 million acres in 1887 to 78 million in 1900 and continued the trend of white settlement on previously Native American-held land. In addition, the law created federally funded boarding schools designed to assimilate Native American children into white society.