Donna R. Howard Museum of Northern Arizona No description specified. 1-1 (1 Record) Documents Archaeological Investigations: Salt River Project Coronado - Silverking Transmission Line 7.5 mi. Segment of SRP Line from Eastern Sitgreaves National Forest Boundary to APS-SRP Common Corridor, Federal Land, Navajo County, Arizona: Report for Archaeological Survey of 24 Proposed Tower Locations and Associated Access Roads Along 7.5 mi. of the Coronado-Silverking Transmission Line Within Sitgreaves National Forest (1978)