The federal government collects, maintains, and uses geospatial information -- data linked to specific geographic locations -- to help support varied missions, including national security and natural resources conservation. To coordinate geospatial activities, in 1994 the President issued an executive order to develop a National Spatial Data Infrastructure -- a framework for coordination that includes standards, data themes, and a clearinghouse. This book describes the geospatial data that selected federal agencies and states use and how much is spent on geospatial data; assess progress in establishing the National Spatial Data Infrastructure; and determine whether selected federal agencies and states invest in duplicative geospatial data.