Kategori:Naturskyddsområden bildade 1913
Sidor i kategorin "Naturskyddsområden bildade 1913"
A
Arlington State Forest
B
Bear Mountain State Park
Blauvelt State Park
C
Cabrillo nationalmonument
E
Elk Island National Park
F
Freetown-Fall River State Forest
Fremont Older Open Space Preserve
G
Gravel Island National Wildlife Refuge
Green Bay National Wildlife Refuge
K
Kirstenbosch National Botanical Garden
M
Mount Robsons provinspark
S
Simpson Park Hängmatta
Stirling Range National Park
W
West Rutland State Forest
White Memorial Foundation