Earth fissures and related subsidence features adjacent to the Tucson Aqueduct, Central Arizona Project, Pinal and Pima Counties, Arizona
Slaff, Steven, 1993, Earth fissures and related subsidence features adjacent to the Tucson Aqueduct, Central Arizona Project, Pinal and Pima Counties, Arizona: Arizona Geological Survey Open-File Report 93-11, 18 p., 6 sheets, scale 1:24,000.