Page 5


Page 5
Colorado River problem
Is Part Of,8
Full text
THE COLORADO RIVER PROBLEM 309 which, if completed, will materially reduce the magnitude of Gila floods. No proposal is being seriously advanced that the Federal Government should undertake control of the floods of the Gila River. [FIG. 1. COLORADO RIVER BASIN] The main floods in the Colorado are due to melting snow in the upper regions of the river. About 86% of the total run-off at Yuma comes from north of Arizona. These floods begin as early as March and may last into July, and their maximum flow is about the same as that of the Gila, but they con-

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