The Geospatial Energy Mapper (GEM) is a comprehensive, interactive online mapping tool that can help identify areas across the country that are suitable for wind, solar and more. First publicly launched in 2013 as the Energy Zones Mapping Tool (EZMT), GEM has been redesigned, rebranded and reengineered. GEM is hosted by the U.S. Department of Energy's (DOE) Argonne National Laboratory with funding from the DOE's Office of Electricity. GEM offers an extensive catalog of mapping data. This includes energy resources and infrastructure, and other information that might influence energy infrastructure siting decisions. With over 190 different mapping layers -- including demographics, boundaries and utilities -- users can locate areas for clean power generation, electric vehicle charging stations and more.