Region
California
1
Louisiana
1
Manitoba
3
Minnesota
3
Minnesota River Valley
1
Minnesota river
2
Mississippi River
1
Mississippi River Valley
2
Mississippi valley
1
Missouri River
1
New Mexico
2
New Southwest
1
Northwest, Old
3
Ohio River
2
Oregon
1
Pacific States
2
Rocky Mountains
2
Southwest, New
1
The West
3
United States
15
West (U.S.)
7