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 492,531 Africa 19,175 Central America 3,986 East Asia 65,458 Japan 7,912 Europe 140,775 Middle East 27,531 North America 191,782 Canada 28,585 Greenland 6 Mexico 4,955 United States 172,106 North Asia 8,130 Pacifica 11,160 South America 14,614 South Asia 9,421 Southeast Asia 10,294

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.