GIS Update #21 (Spring 1993)

A newsletter about the New Jersey Department of Environmental Protection's (NJDEP) Bureau of Geographic Information and Analysis (BGIA) - previously called the Geographic and Statistical Analysis Unit - a division of the Office of Science and Research. The newsletter covers GIS-related news items, projects, initiatives, conference reports, data reports, GIS events and BGIA staff news. The audience includes NJDEP staff, the New Jersey GIS community and the public. This is Issue #21, Spring 1993. It contains articles on a Global Positioning System (GPS) project on well heads in Readington Township, computer systems updates and more.Purpose: The GIS Update newsletter provides information about current GIS activities of the NJDEP -BGIA. The audience includes NJDEP staff and the New Jersey GIS community, and the public