Sinkholes and the Engineering and Environmental Impacts of Karst contains over 70 papers dealing with Karst topography, which impacts water resources, waste disposal, foundation stability, and a multitude of other geotechnical and environmental issues. These papers were presented at the 10th Multidisciplinary Conference held September 24-28, 2005, in San Antonio, Texas. The goal of this conference was to share knowledge and experience between disciplines by emphasizing practical applications and case studies. This proceedings will benefit environmental and geotechnical engineers, and others involved in water resources, water disposal and foundation stability issues. Topics discussed in these papers include: Geology and Origin of Sinkholes and Karst; Modeling Groundwater Flow in Karst; Karst Hydrology of the Edwards Aquifer; Prevention and Remediation of Sinkholes and Karstic Settlement; Foundation and Geotechnical Engineering in Karst; Karst Hydrology and Dye Tracing; Legal Issues and Government Programs Related to Karst; Geophysical Applications to Investigating Karst; GIS, Databases, and Other Computer Applications for Karst; and Karst and Sinkholes in Evaporites.