See Studies on Map

On the map below, click on a region to show a more detailed map (when available) or see a list of studies with locations in that region (when a detailed map is not available).

Region Name Number of Studies World 494,110 Africa 19,272 Central America 3,991 East Asia 65,756 Japan 7,926 Europe 141,192 Middle East 27,723 North America 192,197 Canada 28,650 Greenland 6 Mexico 4,964 United States 172,471 North Asia 8,146 Pacifica 11,202 South America 14,638 South Asia 9,458 Southeast Asia 10,331

Tips: Click on a region name link to show a map of that region Click on a study count link to see a list of studies in that region. Use your browser's back button to return to this list and view studies in another region. Studies with no locations are not included in the study counts or on the maps. Studies with multiple locations are included in each region where the study has locations.