Limited Subsurface Testing at Two Locations on the San Xavier District Prior to the Santa Cruz River Bank Stabilization Project, Tohono O'odham Nation, Pima County, Arizona

At the request of the Bureau of Reclamation (Reclamation), Archaeological Consulting Services, Ltd. (ACS) conducted limited subsurface testing in two areas prior to proposed stabilization along the Santa Cruz River bank in support of the San Xavier Santa Cruz River Bank Stabilization Project. The subsurface testing took place in two arroyos on the west bank of the river downstream from the San Xavier Bridge, which crosses the Santa Cruz River at San Xavier Road. These sizable arroyos, which exceed 4 min depth, have cut through archaeological deposits in and adjacent to AZ BB:13:14(ASM). The purpose of the testing program was to verify Reclamation's assumption that archaeological features were not present in the impact areas, which are approximately 2 m below the known occupation strata.