A Preliminary Report on Phase I and Phase II Archaeological Data Recovery at Five Sites for the Pinal West to Pinal Central Extra-High Voltage Transmission Line Project, Pinal County, Arizona

Logan Simpson Design Inc., under contract to SRP, completed Phase I archeological data recovery at five sites and Phase II data recovery at two of the sites along the Pinal West To Pinal Central Extra-High Voltage Transmission Line and at the Pinal Central substation site, Pinal County, Arizona. The sites are located south and east of the town of Casa Grande. Three of the sites—AZ AA:1:104(ASM), AZ AA:2:301 (ASM), and AZ AA:2:303(ASM)— are Historic era and two—AZ AA:2:284(ASM) and AZ A:2:285(ASM)— are prehistoric sites. The three historic sites were subject to additional archival research in an effort to document their origin, use, and to determine their National Register of Historic Places (NRHP) significance. Subsurface testing was conducted at only one of the Historic era sites—AZ AA:1:104(ASM), a large Euroamerican trash dump associated with the town of Casa Grande. Testing was undertaken to determine if subsurface cultural features and deposits were associated with a small masonry foundation located at the northern edge of the site within the SRP project corridor; none were identified.