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 494,290 Africa 19,277 Central America 3,993 East Asia 65,786 Japan 7,927 Europe 141,255 Middle East 27,740 North America 192,238 Canada 28,660 Greenland 6 Mexico 4,964 United States 172,506 North Asia 8,150 Pacifica 11,205 South America 14,641 South Asia 9,487 Southeast Asia 10,334

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.