Region
United States
63
Pennsylvania
10
États-Unis
7
Alaska
3
Mississippi River
3
Nondalton
3
Nondalton (Alaska)
3
Minnesota
2
Mississippi National River and Recreation Area (Minn.)
2
Tennessee
2
Tennessee River
2
California
1
Chicago
1
Illinois
1
Indo-Pacific Region
1
Louisiana
1
Louisiane
1
Mississippi National River and Recreation Area
1
Monterey
1
Monterey (Calif.)
1
New Orleans Region (La.)
1
Peru
1
Pérou
1
Philadelphia
1
Voyageurs National Park (Minn.)
1