| Name[2]
|
Location
|
Area[2]
|
Designated
|
Description
|
Image
|
| Ash Meadows National Wildlife Refuge
|
Nevada 36°25′N 116°20′W / 36.417°N 116.333°W / 36.417; -116.333 (Ash Meadows National Wildlife Refuge)
|
36.71 sq mi
|
18 December 1986
|
|
|
| Bolinas Lagoon
|
California 37°55′N 122°41′W / 37.917°N 122.683°W / 37.917; -122.683 (Bolinas Lagoon)
|
1.72 sq mi
|
1 September 1998
|
A tidal estuary located on the Pacific Flyway, the lagoon provides habitat for migratory birds as well as ducks, geese, and shorebirds.
|
|
| Cache-Lower White Rivers
|
Arkansas 34°40′N 91°11′W / 34.667°N 91.183°W / 34.667; -91.183 (Cache-Lower White Rivers)
|
314.19 sq mi
|
21 November 1989
|
|
|
| Cache River-Cypress Creek Wetlands
|
Illinois 37°13′N 89°8′W / 37.217°N 89.133°W / 37.217; -89.133 (Cache River-Cypress Creek Wetlands)
|
93.75 sq mi
|
1 November 1994
|
|
|
| Caddo Lake
|
Texas, Louisiana 32°45′N 94°8′W / 32.750°N 94.133°W / 32.750; -94.133 (Caddo Lake)
|
30.80 sq mi
|
23 October 1993
|
|
|
| Catahoula Lake
|
Louisiana 31°30′N 92°6′W / 31.500°N 92.100°W / 31.500; -92.100 (Catahoula Lake)
|
46.9 sq mi
|
18 June 1991
|
|
|
| Chesapeake Bay Estuarine Complex
|
Maryland, Virginia 38°0′N 76°20′W / 38.000°N 76.333°W / 38.000; -76.333 (Chesapeake Bay Estuarine Complex)
|
170 sq mi
|
4 June 1987
|
|
|
| Cheyenne Bottoms
|
Kansas 38°29′N 98°40′W / 38.483°N 98.667°W / 38.483; -98.667 (Cheyenne Bottoms)
|
42.39 sq mi
|
19 October 1988
|
|
|
| Chiwaukee Illinois Beach Lake Plain
|
Illinois Wisconsin 42°25′02″N 87°48′42″W / 42.41722°N 87.81167°W / 42.41722; -87.81167 (Chiwaukee Prairie Illinois Beach Lake Plain)
|
6.12 sq mi
|
6 October 2015
|
Bi-state, lake-coast lands, including Chiwaukee Prairie and Illinois Beach State Park
|
|
| Congaree National Park
|
South Carolina 33°47′22″N 80°45′34″W / 33.78944°N 80.75944°W / 33.78944; -80.75944 (Congaree National Park)
|
40.69 sq mi
|
2 February 2012
|
|
|
| Connecticut River Estuary and Tidal Wetlands Complex
|
Connecticut 41°15′N 72°18′W / 41.250°N 72.300°W / 41.250; -72.300 (Connecticut River Estuary and Tidal Wetlands Complex)
|
25.03 sq mi
|
14 October 1994
|
|
|
| Corkscrew Swamp Sanctuary
|
Florida 26°24′N 81°31′W / 26.400°N 81.517°W / 26.400; -81.517 (Corkscrew Swamp Sanctuary)
|
20.31 sq mi
|
23 March 2009
|
|
|
| Delaware Bay Estuary
|
Delaware, New Jersey 39°11′N 75°14′W / 39.183°N 75.233°W / 39.183; -75.233 (Delaware Bay Estuary)
|
197.89 sq mi
|
20 May 1992
|
|
|
| Door Peninsula Coastal Wetlands
|
Wisconsin 45°13′20″N 85°00′00″W / 45.22222°N 85.00000°W / 45.22222; -85.00000
|
17.880 sq mi
|
6 October 2014
|
|
|
| Edwin B. Forsythe National Wildlife Refuge
|
New Jersey 39°36′N 74°17′W / 39.600°N 74.283°W / 39.600; -74.283 (Edwin B. Forsythe National Wildlife Refuge)
|
50.5 sq mi
|
18 December 1986
|
|
|
| Elkhorn Slough
|
California 36°49′33″N 121°45′25″W / 36.8259°N 121.7569°W / 36.8259; -121.7569 (Elkhorn Slough)
|
2.80 sq mi
|
25 June 2018
|
|
|
| Everglades National Park
|
Florida 25°33′N 80°55′W / 25.550°N 80.917°W / 25.550; -80.917 (Everglades National Park)
|
2,357.14 sq mi
|
4 June 1987
|
|
|
| Francis Beidler Forest
|
South Carolina 33°15′N 80°22′W / 33.250°N 80.367°W / 33.250; -80.367 (Francis Beidler Forest)
|
24.86 sq mi
|
30 May 2008
|
|
|
| Grassland Ecological Area
|
California 37°10′N 120°50′W / 37.167°N 120.833°W / 37.167; -120.833 (Grassland Ecological Area)
|
250 sq mi
|
2 February 2005
|
|
|
| Horicon Marsh
|
Wisconsin 43°30′N 88°38′W / 43.500°N 88.633°W / 43.500; -88.633 (Horicon Marsh)
|
49.85 sq mi
|
4 December 1990
|
|
|
| Humbug Marsh
|
Michigan 42°6′N 83°11′W / 42.100°N 83.183°W / 42.100; -83.183 (Humbug Marsh)
|
0.73 sq mi
|
20 January 2010
|
|
|
| Izembek Lagoon National Wildlife Refuge
|
Alaska 55°45′N 162°41′W / 55.750°N 162.683°W / 55.750; -162.683 (Izembek Lagoon National Wildlife Refuge)
|
650.32 sq mi
|
18 December 1986
|
|
|
| Kakagon and Bad River Sloughs
|
Wisconsin 46°39′N 90°41′W / 46.650°N 90.683°W / 46.650; -90.683 (Kakagon and Bad River Sloughs)
|
16.81 sq mi
|
2 February 2012
|
|
|
| Kawainui and Hamakua Marsh Complex
|
Hawaii 21°24′N 157°45′W / 21.400°N 157.750°W / 21.400; -157.750 (Kawainui and Hamakua Marsh Complex)
|
1.60 sq mi
|
2 February 2005
|
|
|
| Laguna de Santa Rosa Wetland Complex
|
California 38°24′N 122°47′W / 38.400°N 122.783°W / 38.400; -122.783 (Laguna de Santa Rosa Wetland Complex)
|
6.08 sq mi
|
16 April 2010
|
|
|
| Lower Wisconsin Riverway
|
Wisconsin 43°09′N 90°21′W / 43.150°N 90.350°W / 43.150; -90.350 (Lower Wisconsin Riverway)
|
68 sq mi
|
14 February 2020
|
|
|
| Niagara River Corridor
|
New York 43°5′N 79°4′W / 43.083°N 79.067°W / 43.083; -79.067 (Niagara River Corridor)
|
20.261 sq mi
|
3 October 2019
|
|
|
| Okefenokee National Wildlife Refuge
|
Georgia, Florida 30°48′N 82°20′W / 30.800°N 82.333°W / 30.800; -82.333 (Okefenokee National Wildlife Refuge)
|
627.94 sq mi
|
18 December 1986
|
|
|
| Palmyra Atoll National Wildlife Refuge
|
Line Islands 5°52′N 162°6′W / 5.867°N 162.100°W / 5.867; -162.100 (Palmyra Atoll National Wildlife Refuge)
|
788.14 sq mi
|
1 April 2011
|
|
|
| Pelican Island National Wildlife Refuge
|
Florida 27°48′N 80°25′W / 27.800°N 80.417°W / 27.800; -80.417 (Pelican Island National Wildlife Refuge)
|
7.37 sq mi
|
14 March 1993
|
|
|
| Quivira National Wildlife Refuge
|
Kansas 38°5′N 98°29′W / 38.083°N 98.483°W / 38.083; -98.483 (Quivira National Wildlife Refuge)
|
34.59 sq mi
|
12 February 2002
|
The refuge has 34 wetlands and includes two shallow lakes, Big Salt Marsh and Little Salt Marsh. More than half of the refuge is Tallgrass and Shortgrass prairies.
|
|
| Roswell Artesian Wetlands
|
New Mexico 33°27′N 104°23′W / 33.450°N 104.383°W / 33.450; -104.383 (Roswell Artesian Wetlands)
|
3.54 sq mi
|
7 September 2010
|
|
|
| San Francisco Bay and Estuary
|
California 37°52′N 122°23′W / 37.867°N 122.383°W / 37.867; -122.383 (San Francisco Bay and Estuary)
|
612.79 sq mi
|
2 February 2013
|
|
|
| Sand Lake National Wildlife Refuge
|
South Dakota 45°45′N 98°15′W / 45.750°N 98.250°W / 45.750; -98.250 (Sand Lake National Wildlife Refuge)
|
34 sq mi
|
3 August 1998
|
|
|
| Sue and Wes Dixon Waterfowl Refuge at Hennepin and Hopper Lake
|
Illinois 41°13′20″N 89°20′17″W / 41.22222°N 89.33806°W / 41.22222; -89.33806 (Dixon Waterfowl Refuge)
|
4.31 sq mi
|
2 February 2012
|
|
|
| The Emiquon Complex
|
Illinois 40°21′22″N 90°3′10″W / 40.35611°N 90.05278°W / 40.35611; -90.05278 (The Emiquon Complex)
|
22.12 sq mi
|
2 February 2012
|
|
|
| Tijuana River National Estuarine Research Reserve
|
California 32°33′N 117°7′W / 32.550°N 117.117°W / 32.550; -117.117 (Tijuana River National Estuarine Research Reserve)
|
3.94 sq mi
|
2 February 2005
|
|
|
| Tomales Bay
|
California 38°9′N 123°23′W / 38.150°N 123.383°W / 38.150; -123.383 (Tomales Bay)
|
28.5 km2 (11.0 sq mi)
|
30 September 2002
|
|
|
| Upper Mississippi River Floodplain Wetlands
|
Minnesota, Wisconsin, Iowa, Illinois 43°3′N 91°10′W / 43.050°N 91.167°W / 43.050; -91.167 (Upper Mississippi River Floodplain Wetlands)
|
472.42 sq mi
|
5 January 2010
|
|
|
| Wilma H. Schiermeier Olentangy River Wetland Research Park
|
Ohio 40°1′N 83°1′W / 40.017°N 83.017°W / 40.017; -83.017 (Olentangy River Wetland Research Park)
|
0.081 sq mi
|
18 April 2008
|
|
|