The Boulder Canyon Act, the bill that authorized the construction of two dams on the Colorado River and the All American Canal, was approved in 1929. Shortly thereafter, Ray Wilbur, the then Secretary of the … … leggi tutto (read all)
The Boulder Canyon Act, the bill that authorized the construction of two dams on the Colorado River and the All American Canal, was approved in 1929. Shortly thereafter, Ray Wilbur, the then Secretary of the … … leggi tutto (read all)
