Prehistoric Canal (Other Keyword)
1-2 (2 Records)
"Funding for data collection and map production provided by Arizona Department of Transportation Contract No. 85-33. This map is based on the named USGS 7.5 minute series topographic map. Prehistoric information compiled from various sources by Jerry B. Howard. See Howard and Huckleberry (1991: Chapter 2) for further explanation of data sources and map compilation methods. Some errors and inconsistencies could not be rectified during the production process by Soil Systems, Inc. and GEO-MAP,...
A Historical Study of the SRP Distribution System (2011)
The Salt River Valley consists of nearly half-million acres in central Arizona. It is a semiarid area with alluvial soils suitable for agriculture, but low rainfall makes irrigation a necessity for cultivation. Early settlers knew that a system of canals and laterals was necessary for agricultural production. For sustained growth, the farmers needed a water storage facility. With the passage of the National Reclamation Act in 1902, the federal government authorized the Salt River Project (SRP)....