The book begins with a discussion on basic geological aspects related to rocks and minerals, geological structures, soil formation and soil classification, underground water, aerial photo study & remote sensing and geophysical and drilling exploration. This is followed by critical engineering geology topics such as soil and rock mechanics, methods of site investigation for civil engineering projects with detailed coverage for dams, reservoirs, tunnels, powerhouses, bridges, canals, power channels, and flumes, search for construction materials, treatment of geological defects, assessment and mitigation of natural hazards, and evaluation of karstic limestone terrains for reservoir projects.