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GBPP (Gila Bend Power Partners) proposes to construct and operate a 500kV transmission line, which will deliver electrical power from the Hassayampa Switchyard south of Wintersburg, Arizona to the Jojoba Switchyard currently under construction in south-central Maricopa County, Arizona. The project will increase the transmission of electrical power into areas surrounding metropolitan Phoenix, and will promote economic development of benefit to the people of Arizona. GBPP retained EPG (Environmental Planning Group) to assist with the following: (1) preparation of an Environmental Assessment in support of a BLM (Bureau of Land Management) right-of-way grant, (2) an application to the Power Plant and Transmission Line Siting Committee of the Arizona Corporation Commission for a Certificate of Environmental Compatibility, (3) an application for an ASLD (Arizona State Land Department) right-of-way grant, and (4) an application for an USACE (U.S. Army Corp of Engineers) Section 404 permit. This report documents the results of the class I (records review) and class III (field inventory) cultural resource surveys conducted in support of the proposed transmission line project.

Archaeological Consulting Services (ACS) conducted an archaeological survey of two major Arizona river crossings along the proposed route of the All-American Pipeline at the request of Dr. Ed Weil, Cultural Resources Manager, Applied Conservation Technology (ACT). ACT is coordinating the entire cultural resource effort along this proposed pipeline from the Gulf of Mexico to the Pacific Ocean and has subcontracted with ACS to undertake the Arizona portion of the route. Because the placement of the river crossings is important in determining the location of the line, and because they are located on private land, they were surveyed at an early stage in the project's development. The two crossings, one on the Gila River and the other on the San Pedro River, are over 100 miles apart and present very different cultural resource situations, thus they will be treated separately. This record contains a draft report.