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 492,356 Africa 19,164 Central America 3,981 East Asia 65,419 Japan 7,909 Europe 140,718 Middle East 27,506 North America 191,732 Canada 28,573 Greenland 6 Mexico 4,954 United States 172,061 North Asia 8,129 Pacifica 11,158 South America 14,606 South Asia 9,413 Southeast Asia 10,290

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.