Region
- United States 17 results
- Great Britain 5 results
- Mexico 3 results
- Amerique latine 1 results
- Asia 1 results
- England 1 results
- Europe, Eastern 1 results
- Europe, Western 1 results
- Germany 1 results
- India 1 results
- Iowa 1 results
- Latin America 1 results
- Mexique 1 results
- Nanjing (Jiangsu Sheng, China) 1 results
- Nigeria, Northern 1 results
- Palestine 1 results
- Panhandle 1 results
- Russia (Federation) 1 results
- Shenandoah National Park (Va.) 1 results
- Shenandoah River Valley (Va. and W. Va.) 1 results
- Spain 1 results
- Texas 1 results
- Texas Panhandle (Tex.) 1 results
- Texas, West 1 results
- Vladivostok 1 results
- Vladivostok (Russia) 1 results
- West (U.S.) 1 results