Region
- United States 9 results
- Great Britain 3 results
- England 2 results
- London 2 results
- Africa 1 results
- Arizona 1 results
- Central America 1 results
- China 1 results
- Colorado River (Colo.-Mexico) 1 results
- France 1 results
- Grand Canyon 1 results
- Grand Canyon (Ariz.) 1 results
- Illinois 1 results
- India 1 results
- Mexico 1 results
- Rome 1 results
- Tamil Nadu 1 results
- Tamil Nadu (India) 1 results
- Yugoslavia 1 results