Archaeological Investigations: Salt River Project, Coronado-Silverking Transmission Line 500kV and 230kV Corridor Segment from Silverking Substation West to Tonto National Forest Boundary, Federal (Tonto National Forest) and Private Lands, Pinal County, Arizona: Final Report for Archaeological Clearance Survey of 14.8 mi of Extra High Voltage Transmission Line Corridor, 2.0 mi of Substation Access Road, and 0.9 mi of 115kV Transmission Line Alignment, Silverking Substation Area, Tonto National Forest

15 mi of Extra High Voltage transmission line corridor, 2 mi of access road, and 0.9 mi of 115kV transmission line from the Silverking Substation were surveyed for archaeological resources by the Museum of Northern Arizona in April, 1978. Twelve prehistoric and historic Anglo-American affiliation archaeological sites were identified along the EHV corridor between the Silverking Substation and the Tonto National Forest boundary. An isolated recent feature, not given a site designation, was found on the proposed access road alignment. No sites were found on the 115kV alignment. The report describes the survey and its results and makes detailed archaeological clearance recommendations for the surveyed impact areas. Archaeological clearance is recommended for all surveyed areas except for the actual areas of the 12 recorded sites in the EHV corridor.