| Nom du Parc | Etat/Ville | Type du Parc |
|---|---|---|
| C.M. Gardner State Park | Massachusetts (Huntington) | State Park |
| Caballo Lake State Park | Nouveau Mexique (Caballo) | State Park |
| Cabrillo National Monument | Californie (San Diego) | National Monument |
| Cacapon Resort State Park | Virginie-Occidentale (Berkeley Springs) | State Park |
| Caddo Lake State Park | Texas (Karnack) | State Park |
| Caesar Creek State Park | Ohio (Waynesville) | State Park |
| Caesars Head State Park | Caroline du Sud (Cleveland) | State Park |
| Caladesi Island State Park | Floride (Dunedin) | State Park |
| Calaveras Big Trees State Park | Californie (Arnold) | State Park |
| Caledon State Park | Virginie (King George) | State Park |
| Caledonia State Park | Pennsylvanie (Fayetteville) | State Park |
| Calhoun Falls State Park | Caroline du Sud (Calhoun Falls) | State Park |
| California Coastal National Monument | Californie (San Francisco) | National Monument |
| California National Historic Trail | (San Francisco) | National Historic Trail |
| Callahan State Park | Massachusetts (Framingham) | State Park |
| Calvert Cliffs State Park | Maryland (Lusby) | State Park |
| Cama Beach Historical State Park | Washington (Camano Island) | State Park |
| Camano Island State Park | Washington (Camano Island) | State Park |
| Cambridge Junction Historic State Park | Michigan (Brooklyn) | State Park |
| Camden Hills State Park | Maine (Camden) | State Park |
| Camden State Park | Minnesota (Lynd) | State Park |
| Camel's Hump State Park | Vermont (Waterbury) | State Park |
| Camp Columbia State ParkForest | Connecticut (Morris) | State Park |
| Camp Creek State Park and Forest | Virginie-Occidentale (Camp Creek) | State Park |
| Camp Floyd State Park Museum | Utah (Fairfield) | State Park |
| Camp Hale-Continental Divide National Monument | Colorado (Fairfield) | National Monument |
| Camp Helen State Park | Floride (Panama City Beach) | State Park |
| Camp Hero State Park | New York (Montauk) | State Park |
| Camp Nelson National Monument | Kentucky (Nicholasville) | National Monument |
| Camp Plymouth State Park | Vermont (Ludlow) | State Park |
| Campbell Falls State Park Reserve | Connecticut (Norfolk) | State Park |
| Canaan Valley Resort State Park | Virginie-Occidentale (Davis) | State Park |
| Canaveral National Seashore | Floride (Titusville and New Smyrna Beach) | National Seashore |
| Cane Creek State Park | Arkansas (Star City) | State Park |
| Cane River Creole National Historical Park | Louisiane (Natchez) | National Historical Park |
| Cane River National Heritage Area | Louisiane (Natchitoches) | National Heritage Area |
| Canoe Creek State Park | Pennsylvanie (Hollidaysburg) | State Park |
| Canoe-Picnic Point State Park | New York (Clayton) | State Park |
| Canyon De Chelly National Monument | Arizona (Chinle) | National Monument |
| Canyonlands National Park | Utah (Moab pour Island In The Sky et pour The Needles) | National Park |
| Canyons of the Ancients National Monument | Colorado (Moab pour Island In The Sky et pour The Needles) | National Monument |
| Cape Arago State Park | Oregon (Coos Bay) | State Park |
| Cape Blanco State Park | Oregon (Port Orford) | State Park |
| Cape Cod National Seashore | Massachusetts (Wellfleet) | National Seashore |
| Cape Disappointment State Park | Washington (Camano Island) | State Park |
| Cape Hatteras National Seashore | Caroline du Nord (Nags Head, Buxton, Ocracoke) | National Seashore |
| Cape Henlopen State Park | Delaware (Lewes) | State Park |
| Cape Henry Memorial | Virginie (Fort Story) | |
| Cape Krusenstern National Monument | Alaska (Kotzebue) | National Monument |
| Cape Lookout National Seashore | Caroline du Nord (Harkers Island) | National Seashore |
| Cape Lookout State Park | Oregon (Tillamook) | State Park |
| Cape May Point State Park | New Jersey (Cape May) | State Park |
| Capitol Hill Parks | Columbia (district) (Washington) | |
| Capitol Reef National Park | Utah (Torrey) | National Park |
| Caprock Canyons State Park & Trailway | Texas (Quitaque) | State Park |
| Captree State Park | New York (Bay Shore) | State Park |
| Capulin Volcano National Monument | Nouveau Mexique (Capulin) | National Monument |
| Cardigan Mountain State Park | New Hampshire (Orange) | State Park |
| Carl Sandburg Home National Historic Site | Caroline du Nord (Flat Rock) | National Historic Site |
| Carley State Park | Minnesota (Altura) | State Park |
| Carlsbad Caverns National Park | Nouveau Mexique (Carlsbad au nord et El Paso au sud) | National Park |
| Carnifex Ferry Battlefield State Park | Virginie-Occidentale (Summersville) | State Park |
| Carolina Beach State Park | Caroline du Nord (Carolina Beach) | State Park |
| Carr Creek State Park | Kentucky (Sassafras) | State Park |
| Carrizo Plain | Californie ( San Luis Obispo) | National Monument |
| Carvers Creek State Park | Caroline du Nord (Fayetteville) | State Park |
| Casa Grande Ruins National Monument | Arizona (Coolidge) | National Monument |
| Cascade River State Park | Minnesota (Lutsen) | State Park |
| Cascade–Siskiyou | Oregon ( Medford) | National Monument |
| Cascadia State Park | Oregon (Salem) | State Park |
| Cass Scenic Railroad State Park | Virginie-Occidentale (Cass) | State Park |
| Casselman River Bridge State Park | Maryland (Grantsville) | State Park |
| Castillo De San Marcos National Monument | Floride (St. Augustine) | National Monument |
| Castle Clinton National Monument | New York (New York) | National Monument |
| Castle Crags State Park | Californie (Castella) | State Park |
| Castle Mountains National Monument | Californie (Barstow) | National Monument |
| Castle Rock State Park | Californie (San José) | State Park |
| Castle Rock State Park | Illinois (Oregon) | State Park |
| Castle Rocks State Park | Idaho (Almo) | State Park |
| Castlewood Canyon State Park | Colorado (Franktown) | State Park |
| Castlewood State Park | Missouri (Ballwin) | State Park |
| Castner Range National Monument | Texas (El Paso) | National Monument |
| Caswell Memorial State Park | Californie (Salida) | State Park |
| Catalina State Park | Arizona (Tucson) | State Park |
| Catawba Island State Park | Ohio (Port Clinton) | State Park |
| Cathedral Caverns State Park | Alabama (Woodville) | State Park |
| Cathedral Gorge State Park | Nevada (Panaca) | State Park |
| Cathedral State Park | Virginie-Occidentale (Aurora) | State Park |
| Catherine Creek State Park | Oregon (LaGrande) | State Park |
| Catoctin Mountain Park | Maryland (Thurmont) | Park |
| Cattail Cove State Park | Arizona (Lake Havasu City) | State Park |
| Cave Lake State Park | Nevada (Ely) | State Park |
| Cave-in-Rock State Park | Illinois (Cave-in-Rock) | State Park |
| Cayo Costa State Park | Floride (Cayo Costa) | State Park |
| Cayuga Lake State Park | New York (Seneca Falls) | State Park |
| Cedar Bluff State Park | Kansas (Brownell) | State Park |
| Cedar Breaks National Monument | Utah (Cedar City) | National Monument |
| Cedar Creek & Belle Grove National Historical Park | Virginie (Middletown and Strasburg) | National Historical Park |
| Cedar Creek State Park | Virginie-Occidentale (Glenville) | State Park |
| Cedar Hill State Park | Texas (Cedar Hill) | State Park |
| Cedar Island State Park | New York (Hammond) | State Park |
| Cedar Key Museum State Park | Floride (Cedar Key ) | State Park |
| Cedar Point State Park | New York (Clayton) | State Park |
| Cedar Rock State Park | Iowa (Independence) | State Park |
| Cedars of Lebanon State Park | Tennessee (Lebanon) | State Park |
| Central High School National Historic Site | Arkansas (Little Rock) | National Historic Site |
| Cerrillos Hills State Park | Nouveau Mexique (Cerrillos) | State Park |
| César E. Chávez National Monument | Californie (Keene) | National Monument |
| Chaco Culture National Historical Park | Nouveau Mexique (Nageezi) | National Historical Park |
| Chadron State Park | Nebraska (Chadron) | State Park |
| Chain O' Lakes State Park | Indiana (Albion) | State Park |
| Chain O'Lakes State Park | Illinois (Spring Grove) | State Park |
| Chamizal National Memorial | Texas (El Paso) | National Memorial |
| Channahon State Park | Illinois (Channahon) | State Park |
| Channel Islands National Park | Californie (Ventura) | National Park |
| Chapel Point State Park | Maryland (Marbury) | State Park |
| Chapman State Park | Maryland (Indian Head) | State Park |
| Chapman State Park | Pennsylvanie (Clarendon) | State Park |
| Charles A. Lindbergh State Park | Minnesota (Little Falls) | State Park |
| Charles Pinckney National Historic Site | Caroline du Sud (Mt. Pleasant) | National Historic Site |
| Charles Young Buffalo Soldiers National Monument | Ohio (Xenia) | National Monument |
| Charlestown State Park | Indiana (Charlestown) | State Park |
| Charlotte Harbor Preserve State Park | Floride (Punta Gorda) | State Park |
| Chatfield Hollow State Park | Connecticut (Killingworth) | State Park |
| Chatfield State Park | Colorado (Denver) | State Park |
| Chattahoochee Bend State Park | Georgie (Newnan) | State Park |
| Chattahoochee River National Recreation Area | Georgie (Atlanta) | National Recreation Area |
| Cheaha State Park | Alabama (Lineville) | State Park |
| Cheboygan State Park | Michigan (Cheboygan) | State Park |
| Cheesequake State Park | New Jersey (Matawan) | State Park |
| Chemin-A-Haut State Park | Louisiane (Bastrop) | State Park |
| Chenango Valley State Park | New York (Chenango Forks) | State Park |
| Cheney State Park | Kansas (Cheney) | State Park |
| Cheraw State Park | Caroline du Sud (Cheraw) | State Park |
| Cherokee Landing State Park | Oklahoma (Park Hill) | State Park |
| Cherry Creek State Park | Colorado (Denver) | State Park |
| Cherry Plain State Park | New York (Petersburg) | State Park |
| Cherry Springs State Park | Pennsylvanie (Coudersport) | State Park |
| Chesapeake & Ohio Canal National Historical Park | Maryland (Potomac River) | National Historical Park |
| Chester State Park | Caroline du Sud (Chester) | State Park |
| Chewacla State Park | Alabama (Woodland) | State Park |
| Cheyenne Mountain State Park | Colorado (Security-Widefield) | State Park |
| Chickamauga & Chattanooga National Military Park | Georgie (Fort Oglethorpe) | National Military Park |
| Chickasaw National Recreation Area | Oklahoma (Sulphur) | National Recreation Area |
| Chickasaw State Park | Tennessee (Henderson) | State Park |
| Chicopee Memorial State Park | Massachusetts (Chicopee) | State Park |
| Chicot State Park | Louisiane (Ville Platte) | State Park |
| Chief Logan State Park | Virginie-Occidentale (Logan) | State Park |
| Chief Plenty Coups State Park | Montana (Pryor) | State Park |
| Chilkat State Park | Alaska (Haines) | State Park |
| Chimney Bluffs State Park | New York (Wolcott) | State Park |
| Chimney Rock National Historic Site | Nebraska (Bayard) | National Historic Site |
| Chimney Rock National Monument | Colorado (Pagosa Springs) | National Monument |
| Chimney Rock State Park | Caroline du Nord (Asheville) | State Park |
| China Camp State Park | Californie (San Francisco) | State Park |
| Chino Hills State Park | Californie (San José) | State Park |
| Chippokes State Park | Virginie (Surry) | State Park |
| Chiricahua National Monument | Arizona (Willcox) | National Monument |
| Chittenango Falls State Park | New York (Cazenovia) | State Park |
| Choke Canyon State Park | Texas (Calliham) | State Park |
| Christiansted National Historic Site | (Christiansted, St. Croix) | National Historic Site |
| Chugach State Park | Alaska (Anchorage) | State Park |
| Cimarron Canyon State Park | Nouveau Mexique (Eagle Nest) | State Park |
| City Of Rocks National Reserve | Idaho (Almo) | National Reserve |
| City of Rocks State Park | Nouveau Mexique (Faywood) | State Park |
| Clara Barton National Historic Site | Maryland (Glen Echo) | National Historic Site |
| Clark Island Marine State Park | Washington (Olga) | State Park |
| Clark Reservation State Park | New York (Jamesville) | State Park |
| Clark's Lookout State Park | Montana (Dillon) | State Park |
| Clarkco State Park | Mississippi (Quitman) | State Park |
| Clarksburg State Park | Massachusetts (Clarksburg) | State Park |
| Clayton Lake State Park | Nouveau Mexique (Clayton) | State Park |
| Clayton Lake State Park | Oklahoma (Clayton) | State Park |
| Claytor Lake State Park | Virginie (Dublin) | State Park |
| Clear Creek State Park | Pennsylvanie (Sigel) | State Park |
| Clear Lake State Park | Californie (Kelseyville) | State Park |
| Clear Lake State Park | Iowa (Clear Lake) | State Park |
| Clear Lake State Park | Michigan (Atlanta) | State Park |
| Cleburne State Park | Texas (Cleburne) | State Park |
| Cliffs of the Neuse State Park | Caroline du Nord (Goldsboro) | State Park |
| Clifty Falls State Park | Indiana (Madison) | State Park |
| Clinch River State Park | Virginie (Saint Paul) | State Park |
| Clinton State Park | Kansas (Lawrence) | State Park |
| Cloudland Canyon State Park | Georgie (Rising Fawn) | State Park |
| Clough State Park | New Hampshire (Weare) | State Park |
| Cobscook Bay State Park | Maine (Edmunds) | State Park |
| Cochituate State Park | Massachusetts (Natick) | State Park |
| Codorus State Park | Pennsylvanie (Hanover) | State Park |
| Coeur d'Alene Parkway State Park | Idaho (Coeur d'Alene) | State Park |
| Coeur d’Alene’s Old Mission State Park | Idaho (Cataldo) | State Park |
| Cold Spring Harbor State Park | New York (Cold Spring Harbor) | State Park |
| Coldwater Lake State Park | Michigan (Coldwater) | State Park |
| Coleman State Park | New Hampshire (Stewartstown) | State Park |
| Colleton State Park | Caroline du Sud (Walterboro) | State Park |
| Collier Memorial State Park | Oregon (Klamath Falls) | State Park |
| Collier-Seminole State Park | Floride (Naples) | State Park |
| Collis P. Huntington State Park | Connecticut (Redding) | State Park |
| Colonel Denning State Park | Pennsylvanie (Newville) | State Park |
| Colonial National Historical Park | Virginie (Jamestown and Yorktown) | National Historical Park |
| Colorado Bend State Park | Texas (Bend) | State Park |
| Colorado National Monument | Colorado (Fruita) | National Monument |
| Colt Creek State Park | Floride (Lakeland) | State Park |
| Colt State Park | Rhode Island (Bristol) | State Park |
| Colton Point State Park | Pennsylvanie (Wellsboro) | State Park |
| Columbus-Belmont State Park | Kentucky (Columbus) | State Park |
| Conchas Lake State Park | Nouveau Mexique (Conchas Dam) | State Park |
| Conconully State Park | Washington (Conconully) | State Park |
| Congaree National Park | Caroline du Sud (Hopkins) | National Park |
| Connecticut River Greenway State Park | Massachusetts (Northampton) | State Park |
| Connecticut Valley Railroad State Park | Connecticut (Essex) | State Park |
| Constitution Convention Museum State Park | Floride (Port St. Joe) | State Park |
| Constitution Gardens | Columbia (district) (Washington) | |
| Conway Cemetery State Park | Arkansas (Bradley) | State Park |
| Cook Forest State Park | Pennsylvanie (Cooksburg) | State Park |
| Coolidge State Park | Vermont (Plymouth) | State Park |
| Cooney State Park | Montana (Roberts) | State Park |
| Cooper Lake State Park | Texas (Cooper) | State Park |
| Copper Breaks State Park | Texas (Quanah) | State Park |
| Copper Culture State Park | Wisconsin (Oconto) | State Park |
| Copper Falls State Park | Wisconsin (Mellen) | State Park |
| Coral pink sand dunes State Park | Utah (Kananb) | State Park |
| Cordell Hull Birthplace State Park | Tennessee (Byrdstown) | State Park |
| Coronado National Memorial | Arizona (Hereford) | National Memorial |
| Corson's Inlet State Park | New Jersey (Woodbine) | State Park |
| Cottonwood Canyon State Park | Oregon (The Dalles) | State Park |
| Coulee State Forest | Wisconsin (Onalaska) | State Park |
| Council Grounds State Park | Wisconsin (Merrill) | State Park |
| Council Grove State Park | Montana (Missoula) | State Park |
| Cove Lake State Park | Tennessee (Caryville) | State Park |
| Cowan Lake State Park | Ohio (Wilmington) | State Park |
| Cowans Gap State Park | Pennsylvanie (Fort Loudon) | State Park |
| Cowpens National Battlefield | Caroline du Sud (Chesnee) | National Battlefield |
| Coyote Creek State Park | Nouveau Mexique (Guadalupita) | State Park |
| Craig Lake State Park | Michigan (Champion) | State Park |
| Crater Lake National Park | Oregon (Medford et Klamath Falls au sud et Roseburg et Bend au nord) | National Park |
| Crater of Diamonds State Park | Arkansas (Murfreesboro) | State Park |
| Craters Of The Moon National Monument and Preserve | Idaho (Arco) | National Monument & Preserve |
| Crawford Notch State Park | New Hampshire (Harts Location) | State Park |
| Crawford State Park | Colorado (Hotchkiss) | State Park |
| Crawford State Park | Kansas (Farlington) | State Park |
| Crescent Beach State Park | Maine (Portland) | State Park |
| Croft State Park | Caroline du Sud (Spartanburg) | State Park |
| Crooked River State Park | Georgie (St. Marys) | State Park |
| Cross Plains State Park | Wisconsin (Cross Plains) | State Park |
| Cross Ranch State Park | Dakota du Nord (River Road Center) | State Park |
| Cross Timbers State Park | Kansas (Toronto) | State Park |
| Crow Wing State Park | Minnesota (Brainerd) | State Park |
| Crowder State Park | Missouri (Trenton) | State Park |
| Crowders Mountain State Park | Caroline du Nord (Charlotte) | State Park |
| Crowley's Ridge State Park | Arkansas (Walcott) | State Park |
| Crystal Cove State Park | Californie (Los Angeles) | State Park |
| Crystal Lake State Park | Vermont (Barton) | State Park |
| Crystal River Archaeological State Park | Floride (Crystal River) | State Park |
| Crystal River Preserve State Park | Floride (Crystal River) | State Park |
| Cuivre River State Park | Missouri (Troy) | State Park |
| Cumberland Bay State Park | New York (Plattsburgh) | State Park |
| Cumberland Gap National Historical Park | Kentucky (Middlesboro) | National Historical Park |
| Cumberland Island National Seashore | Georgie (Saint Marys) | National Seashore |
| Cumberland Mountain State Park | Tennessee (Crossville) | State Park |
| Cummins Falls State Park | Tennessee (Cookeville) | State Park |
| Cunningham Falls State Park | Maryland (Thurmont) | State Park |
| Curecanti National Recreation Area | Colorado (Gunnison) | National Recreation Area |
| Curlew Lake State Park | Washington (Republic) | State Park |
| Current River State Park | Missouri (Salem) | State Park |
| Curry Hammock State Park | Floride (Marathon) | State Park |
| Curt Gowdy State Park | Wyoming (Cheyenne) | State Park |
| Custer State Park | Dakota du Sud (Custer) | State Park |
| Cutts Island State Park | Washington (Gig Harbor) | State Park |
| Cuyahoga Valley National Park | Ohio (Cleveland and Akron) | National Park |
| Cuyamaca Rancho State Park | Californie (Descanso) | State Park |
| Cypremort Point State Park | Louisiane (Cypremort Point) | State Park |
| Cypress Branch State Park | Maryland (Millington) | State Park |
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