While tools like the ones shown here disrupt little of the ground and posed only a minor risk to archaeological sites, workers at La Mesa also used heavy equipment, including bulldozers, that threatened buried structures and artifacts. | Source: Mang Jr, Fred E. HFCA 1607_Fires And Firefighting_025. c. 1977. NPGallery, https://npgallery.nps.gov/AssetDetail/6403f09d-881c-405e-8341-2b5168eeba75Download Original File
