Richard Crook is a recognized veteran and one of the early pioneers of engineering geology in southern California. He has worked on major geologic investigations for the USGS and Caltech, including the Sierra Madre fault and the Santa Monica fault studies. His published maps and reports are in wide use today by practicing geologists in southern California. he has also worked as an instructor at UC-Riverside and CSULA. Richard is a member of the American Geophysical Union and the Association of Engineering Geologists. Richard has worked as a geologic consultant to AES since AES’s founding in 1985, and currently consults AES on fault study projects.