AZ vs. CA:20 California Exhibits, Vol. XX; Nos. 4050-4092

page 17

-17- the waters of the Colorado River for the purpose of irrigating the land on the Yuma and Colorado River Indian Reservations in California and Arizona. Laguna Dam, on the Colorado River, was constructed pursuant to that authority. By a deed dated March 15, 1907, the Colorado Valley Pumping and Irrigating Company for a consideration of $6,000 conveyed to the United States its canal which had its head or point of diversion on the Colorado River, and all appurtenances to said canal, including all water locations, filings, or water rights, theretofore made by the Company. No filings have been made under State law on the lower Colorado River in connection with structures in the Colorado River authorized by the Boulder Canyon Project Act, and related works subsequently authorized. The facts relating to this project are commented upon in some detail subsequently in this memorandum (ante, p. 15). By a deed dated February 3, 1908, the Yuma Valley Union Land and Water Company and F. L. Ingraham, assignee, for a consideration of $17,000, conveyed to the United States its canal systems and appurtenances and its water rights in the Colorado River. Region 4 (which includes northern Nevada, Utah, western Wyoming, and western Colorado) The Regional Counsel reports that all water rights for projects in this region have been acquired pursuant to State law, irrespective of whether the stream is navigable or non-navigable. He advises further that applications have been filed for appropriation of water from Utah Lake which has been declared navigable by the Utah Su-