Show world During Durins other months of this period precipitation has been greater grenter than the normal These same variations could have been expected Mn Alter said had there been no Boulder Dam Darn as they are con con- considered considered con considered to be within the control of the usual precipitation producing influences In 1905 and 1906 the Colorado River broke its banks and over over- overflowed overflowed flowed loved into the Imperial Vane Valley of Southern California forming Sal ton Sal ton Sea in what previously had been a desert basin Before the ri- ri riI river vcr n I vcr ver was returned to its channel Salton Sea had covered square miles Mr l Sager points out that it has been conclusively shown that the creation of Salton Sea had no effect on the rainfall of its surrounding area and none on the temperature and humidity of areas more than a quarter of a 11 amiles emiles miles milos from its shores Yet the sur sur- surface surface face area of Salton Sea was more than twice that of Lake Mead Construction of Boulder Darn Dam Damand Damand an and creation of Lake Mead has exerted and will continue to exert hasI I a great influence on the South South- Southwest Southwest Southwest west Mr Page said The char char- character character acter aeter of the Colorado River below Boulder dam has haa been boen changed entirely entirely en- en from rom an erratic stream to a perennial stream on which irrigators Irrigators tors tors can rely confidently The con con- contributions contributions contributions made by Lake Mead through control of floods and through increasing the flow of the river during summer cummer have added to the of tens of thou thousands No mR magical ial info on on the tho climate of the sou ihas c h has hns been claimed for lor this and none nono is ia necessary to its com com- completa completo complete pleto pleta Justification |