An article in CNET last Friday stated that Australia is updating its geocentric datum to account for continental drift. The updated location is needed so that GPS devices will work. See: http://www.cnet.com/news/australia-has-moved-1-5m-so-its-updating-its-location-for-self-driving-cars/ Another article on it is from Science Alert: http://www.sciencealert.com/australia-s-about-to-move-1-5-metres-to-the-north Linda Zellmer -- Linda Zellmer Government Information & Data Services Librarian Liaison to Natural Sciences & Agriculture 415 Malpass Library Macomb, IL 61455 [log in to unmask] Phone: 309-298-2723 <callto:309-298-2723> Fax: 309-298-2791 <callto:309-298-2791>