Clifford J. Mugnier is Chief of Geodesy, Emeritus of the Center for Geoinformatics, Department of Civil and Environmental Engineering, Louisiana State University, USA. He attended Louisiana State University in Baton Rouge, LA initially and later transferred to Northwestern State University in Natchitoches, LA. After graduation with a Baccalaureate in Physical Geography and Mathematics, he was employed by the U.S. Air Force Aeronautical Chart and Information Center in St. Louis, MO. Trained as a Professional Cartographer, he was issued an Induction Notice for the Armed Forces and he enlisted in the U.S. Army. After graduation from the Engineering School, he was commissioned into the Army as a junior officer and assigned to the U.S. Army Map Service where he served three years in production-oriented research in geodesy and photogrammetry for extraterrestrial mapping and also for the CORONA program. He also was a company commander and Captain, executive secretary of the Army Topographic Scientific Advisory Committee. After completing military service, he worked for the Autometric Operation, Raytheon Company in Wayland, MA as chief of photogrammetric triangulation for two years and then moved to Baton Rouge, LA as manager of the photogrammetry division of Owen and White, Inc., Consulting Engineers. Four years later he moved to New Orleans, LA and began full-time consulting in geodesy and forensic photogrammetry. He started part-time teaching surveying, geodesy, and photogrammetry at the University of New Orleans for 20 years and performed research in the physical geodesy of subsidence for the State of Louisiana starting in 1989. In 2000, he moved to Baton Rouge and started full-time teaching at Louisiana State University.