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 495,378 Africa 19,349 Central America 3,996 East Asia 66,011 Japan 7,937 Europe 141,558 Middle East 27,873 North America 192,529 Canada 28,697 Greenland 6 Mexico 4,971 United States 172,774 North Asia 8,166 Pacifica 11,217 South America 14,668 South Asia 9,510 Southeast Asia 10,360

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.