Region
- United States 10 results
- North America 6 results
- Africa 5 results
- Great Britain 4 results
- India 4 results
- Tropics 4 results
- Florida 3 results
- Alaska 2 results
- California 2 results
- Chad 2 results
- Developing countries 2 results
- Europe 2 results
- Great Lakes (North America) 2 results
- Italy 2 results
- Kenya 2 results
- Latin America 2 results
- Mali 2 results
- Mediterranean Region 2 results
- Middle East 2 results
- Middle West 2 results
- Saint Lawrence Seaway 2 results
- South Asia 2 results
- Southern States 2 results
- Sweden 2 results
- West (U.S.) 2 results