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 464,094 Africa 17,363 Central America 3,817 East Asia 59,808 Japan 7,570 Europe 132,835 Middle East 24,620 North America 184,117 Canada 27,405 Greenland 4 Mexico 4,762 United States 165,255 North Asia 7,847 Pacifica 10,582 South America 13,942 South Asia 8,552 Southeast Asia 9,574

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.