Geography
France
9 results
United States
9 results
England
7 results
Great Britain
6 results
Mexico
4 results
California
2 results
Colorado
2 results
Georgia
2 results
Africa, Sub-Saharan
1 results
Arizona
1 results
Confederate States of America
1 results
Cornwall
1 results
Cornwall (County)
1 results
Holy Roman Empire
1 results
Indiana
1 results
Kansas
1 results
Kazakhstan
1 results
London
1 results
New Albany Shale (Ind. and Ky.)
1 results
Oregon
1 results
Pennsylvania
1 results
Philadelphia
1 results
Pima County
1 results
Slick Rock District
1 results
South Atlantic States
1 results
Spain
1 results
Sub-Saharan Africa
1 results
York
1 results