Region
Alabama
1
Connecticut Valley
1
Europe
1
La Rioja
1
La Rioja (Spain)
1
New England
3
New Mexico
5
Prehistoric Trackways National Monument
2
Prehistoric Trackways National Monument (N.M.)
2
Spain
1
Tularosa Valley (N.M. and Tex.)
1
United States
1
West (U.S.)
1
White Sands National Monument
1
White Sands National Monument (N.M.)
1
White Sands National Park (N.M.)
2
Wyoming
1