MARANA, ARIZONA—A construction project at the edge of the Santa Cruz River floodplain in southern Arizona has unearthed traces of an ancient village, including an irrigation canal, 37 pit houses, and six burials that could be 4,000 years old. The construction of an outlet center will be delayed while the site is investigated, as required by law. Peter Steere, historic preservation officer for the Tohono O’odham Tribe, told The Arizona Daily Star that he thinks the excavation will uncover additional features and require monitors from the tribe. “We think it likely that significantly more than 18 burials will be identified,” added Mary Ellen Walsh of the State Historic Preservation Office.