Region
- Asia 2 results
- California 2 results
- Caribbean Area 2 results
- China 4 results
- China, Southwest 2 results
- Costa Rica 2 results
- Dulce, Gulf of 2 results
- Dulce, Gulf of (Costa Rica) 2 results
- Germany 2 results
- Great Britain 2 results
- Hudson River (N.Y. and N.J.) 2 results
- India 2 results
- Islamic countries 2 results
- Italy 2 results
- Japan 2 results
- North America 2 results
- Pavones (Puntarenas) 2 results
- Pavones (Puntarenas, Costa Rica) 2 results
- Pennsylvania 2 results
- Pittsburgh 2 results
- Russia (Federation) 2 results
- Seattle 2 results
- Seattle (Wash.) 2 results
- Slovakia 2 results
- South Africa 2 results
- Tehri Dam (India) 2 results
- United States 44 results
- Washington (State) 2 results