Oblast
America
1
Anza-Borrego Desert
2
Anza-Borrego Desert (Calif.)
2
Anza-Borrego Desert State Park (Calif.)
2
Brazil
1
California
3
California National Historic Trail
1
Canada
2
Caribbean Area
2
Chicago (Ill.)
1
Guatemala
1
Idaho
1
Illinois
1
Indiana
1
Inside Passage
1
Latin America
2
Massachusetts
1
Mississippi River Valley
2
New France
2
North America
2
Northwest, Pacific
1
Oklahoma
1
Oregon National Historic Trail
1
South Africa
1
Southern States
1
Spain
1
Texas
2
Tulsa
1
Tulsa (Okla.)
1
United States
2
West (U.S.)
1