| ABF | Atchafalaya Basin Floodway |
| ABLI | Abraham Lincoln Birthplace National Historical Park |
| ACAD | Acadia National Park |
| ADAM | Adams National Historical Park |
| AFBG | African Burial Ground National Monument |
| AGFO | Agate Fossil Beds National Monument |
| AKRO | Alaska Region |
| AKSO | Alaska Support Office |
| ALAG | Alagnak Wild River |
| ALEU | Aleutian World War Ii National Historic Area |
| ALFL | Alibates Flint Quarries National Monument |
| ALKA | Ala Kahakai National Historic Trail |
| ALPO | Allegheny Portage Railroad National Historic Site |
| AMIN | America's Industrial Heritage Project |
| AMIS | Amistad National Recreation Area |
| AMME | American Memorial Park |
| ANDE | Andersonville National Historic Site |
| ANIA | Aniakchak National Monument And Preserve |
| ANJO | Andrew Johnson National Historic Site |
| ANPA | Anacostia Park: Sections A Thru G; Kenilworth Park And Aquatic Gardens |
| ANTI | Antietam National Battlefield And Cemetery |
| APCO | Appomattox Courthouse National Historical Park |
| APIS | Apostle Islands National Lakeshore |
| APPA | Appalachian National Scenic Trail |
| ARCH | Arches National Park |
| ARHO | Arlington House, The Robert E. Lee Memorial |
| ARPO | Arkansas Post National Memorial |
| ASIS | Assateague Island National Seashore |
| ATTR | Atchafalaya National Heritage Area |
| AW | Alexandria Waterfront |
| AZRU | Aztec Ruins National Monument |
| BADL | Badlands National Park |
| BAND | Bandelier National Monument |
| BATT | Battleground National Cemetery |
| BAWA | Baltimore-Washington Parkway |
| BEHA | Benjamin Harrison Home |
| BELA | Bering Land Bridge National Preserve |
| BEOL | Bent's Old Fort National Historic Site |
| BEPA | Belmont-Paul Women's Equality National Monument |
| BH | Beringian Heritage |
| BIBE | Big Bend National Park |
| BICA | Bighorn Canyon National Recreation Area |
| BICR | Birmingham Civil Rights National Monument |
| BICY | Big Cypress National Preserve |
| BIHO | Big Hole National Battlefield |
| BISC | Biscayne National Park |
| BISO | Big South Fork National River And Recreation Area |
| BITH | Big Thicket National Preserve |
| BLAC | Blackstone River Valley National Heritage Corridor |
| BLCA | Black Canyon Of The Gunnison National Park |
| BLRI | Blue Ridge Parkway |
| BLRV | Blackstone River Valley National Historical Park |
| BLUE | Bluestone National Scenic River |
| BOAF | Boston African American National Historic Site |
| BOHA | Boston Harbor Islands National Recreation Area |
| BOSO | Boston Support Office |
| BOST | Boston National Historical Park |
| BOWA | Booker T. Washington National Monument |
| BRAM | Bramwell National Historical Park |
| BRCA | Bryce Canyon National Park |
| BRVB | Brown V. Board Of Education National Historic Site |
| BUBA | Buffalo Bayou National Heritage Area |
| BUFF | Buffalo National River |
| BUIS | Buck Island Reef National Monument |
| CABR | Cabrillo National Monument |
| CACA | Cacapon Wild And Scenic River |
| CACH | Canyon De Chelly National Monument |
| CACL | Castle Clinton National Monument |
| CACO | Cape Cod National Seashore |
| CAGR | Casa Grande Ruins National Monument |
| CAHA | Cape Hatteras National Seashore |
| CAJO | Captain John Smith Chesapeake National Historic Trail |
| CAKR | Cape Krusenstern National Monument |
| CALI | California National Historic Trail |
| CALO | Cape Lookout National Seashore |
| CAMO | Castle Mountains National Mounument |
| CANA | Canaveral National Seashore |
| CANE | Camp Nelson Civil War Heritage Park |
| CANU | Castle Nugent National Historical Site |
| CANY | Canyonlands National Park |
| CARE | Capitol Reef National Park |
| CARI | Cane River Creole National Historical Park |
| CARL | Carl Sandburg Home National Historic Site |
| CASA | Castillo De San Marcos National Monument |
| CATO | Catoctin Mountain Park |
| CAVE | Carlsbad Caverns National Park |
| CAVO | Capulin Volcano National Monument |
| CAWO | Carter G. Woodson Home National Historic Site |
| CBG | Chesapeake Bay Gateways |
| CEBE | Cedar Creek And Belle Grove National Historical Park |
| CEBR | Cedar Breaks National Monument |
| CECH | Cesar Chavez National Monument |
| CHAM | Chamizal National Memorial |
| CHAT | Chattahoochee River National Recreation Area |
| CHCH | Chickamauga And Chattanooga National Military Park |
| CHCU | Chaco Culture National Historical Park |
| CHIC | Chickasaw National Recreation Area |
| CHIR | Chiricahua National Monument |
| CHIS | Channel Islands National Park |
| CHOH | Chesapeake And Ohio Canal National Historical Park |
| CHPI | Charles Pinckney National Historic Site |
| CHPO | Chicago Portage National Historic Site |
| CHRI | Christiansted National Historic Site |
| CHRO | Chimney Rock National Historic Site |
| CHSC | Little Rock Central High School National Historic Site |
| CHVA | Champlain Valley National Heritage Corridor |
| CHYO | Charles Young Buffalo Soldiers National Monument |
| CIRO | City Of Rocks National Reserve |
| CIW | Cambria Iron Works National Historic Site |
| CLBA | Clara Barton National Historic Site |
| COLM | Colorado National Monument |
| COLO | Colonial National Historical Park; Cape Henry National Memorial; Jamestown National Historical Site; Yorktown National Battlefield And Cemetery |
| COLT | Coltsville National Historical Park |
| CONG | Congaree National Park |
| CORO | Coronado National Memorial |
| COWP | Cowpens National Battlefield |
| CRLA | Crater Lake National Park |
| CRMO | Craters Of The Moon National Monument And Preserve |
| CUGA | Cumberland Gap National Historical Park |
| CUIS | Cumberland Island National Seashore |
| CURE | Curecanti National Recreation Area |
| CUVA | Cuyahoga Valley National Park |
| DAAV | Dayton Aviation Heritage National Historical Park |
| DELE | Delaware And Lehigh Navigation Canal National Heritage Corridor |
| DENA | Denali National Park And Preserve |
| DEPO | Devils Postpile National Monument |
| DESO | De Soto National Memorial |
| DETO | Devils Tower National Monument |
| DEVA | Death Valley National Park |
| DEWA | Delaware Water Gap National Recreation Area |
| DINO | Dinosaur National Monument |
| DRTO | Dry Tortugas National Park |
| DSC | Denver Service Center |
| DSCP | National Park Service-Inactive Proposed Areas |
| EAPO | East Potomac Park |
| EBLA | Ebey's Landing National Historical Reserve |
| EDAL | Edgar Allan Poe National Historic Site |
| EDIS | Thomas Edison National Historical Park |
| EFMO | Effigy Mounds National Monument |
| EISE | Eisenhower National Historic Site |
| ELCA | El Camino Real De Tierra Adentro National Historic Trail |
| ELMA | El Malpais National Monument |
| ELMO | El Morro National Monument |
| ELRO | Eleanor Roosevelt National Historic Site |
| ERCA | Erie Canalway |
| EUON | Eugene O'Neill National Historic Site |
| EVER | Everglades National Park |
| FC | Four Corners National Monument |
| FEHA | Federal Hall National Memorial |
| FIIS | Fire Island National Seashore |
| FILA | First Ladies National Historic Site |
| FLFO | Florissant Fossil Beds National Monument |
| FLNI | Flight 93 National Memorial |
| FOBO | Fort Bowie National Historic Site |
| FOBU | Fossil Butte National Monument |
| FOCA | Fort Caroline National Memorial |
| FODA | Fort Davis National Historic Site |
| FODO | Fort Donelson National Battlefield And Cemetery |
| FOFR | Fort Frederica National Monument |
| FOHU | Fort Hunt |
| FOLA | Fort Laramie National Historic Site |
| FOLS | Fort Larned National Historic Site |
| FOMA | Fort Matanzas National Monument |
| FOMC | Fort McHenry National Monument And Historic Shrine |
| FOMR | Fort Monroe National Monument |
| FONE | Fort Necessity National Battlefield |
| FOPO | Fort Point National Historic Site |
| FOPU | Fort Pulaski National Monument |
| FORA | Fort Raleigh National Historic Site |
| FOSC | Fort Scott National Historic Site |
| FOSM | Fort Smith National Historic Site |
| FOST | Fort Stanwix National Monument |
| FOSU | Fort Sumter And Fort Moultrie National Historical Park |
| FOTH | Ford's Theatre National Historic Site |
| FOUN | Fort Union National Monument |
| FOUS | Fort Union Trading Post National Historic Site |
| FOVA | Fort Vancouver National Historic Site / Vancouver National Historic Reserve |
| FOWA | Fort Washington Park |
| FRDE | Franklin Delano Roosevelt Memorial |
| FRDO | Frederick Douglass National Historic Site |
| FRHI | Friendship Hill National Historic Site |
| FRLA | Frederick Law Olmsted National Historic Site |
| FRRI | Freedom Riders National Monument |
| FRSP | Fredericksburg And Spotsylvania National Military Park And Cemetery |
| FRST | First State National Historical Park |
| GAAR | Gates Of The Arctic National Park And Preserve |
| GARI | Gauley River National Recreation Area |
| GATE | Gateway National Recreation Area |
| GCP | Parashant National Monument |
| GEGR | General Grant National Memorial |
| GERO | George Rogers Clark National Historical Park |
| GETT | Gettysburg National Military Park And Cemetery |
| GEWA | George Washington Birthplace National Monument |
| GICL | Gila Cliff Dwellings National Monument |
| GLAC | Glacier National Park |
| GLBA | Glacier Bay National Park And Preserve |
| GLCA | Glen Canyon National Recreation Area |
| GLDE | Gloria Dei (Old Swedes') Church National Historic Site |
| GLEC | Glen Echo Park, Clara Barton National Parkway (Md), Oxon Hill Farm, Oxon Cove Park, Great Falls Park, Harmony Hall |
| GLOR | Glorieta National Battlefield |
| GO | Georgia O'Keeffe National Historic Site |
| GOGA | Golden Gate National Recreation Area; Alcatraz Island; Presidio Of San Francisco |
| GOIS | Governors Island National Monument |
| GOSP | Golden Spike National Historical Park |
| GRBA | Great Basin National Park |
| GRCA | Grand Canyon National Park |
| GREE | Greenbelt Park |
| GREG | Great Egg Harbor Scenic And Recreational River |
| GRKO | Grant-Kohrs Ranch National Historic Site |
| GRPO | Grand Portage National Monument |
| GRSA | Great Sand Dunes National Park And Preserve |
| GRSM | Great Smoky Mountains National Park |
| GRSP | Green Springs Historic District |
| GRST | Grand Staircase-Escalante National Monument (Managed By Bureau Of Land Management |
| GRTE | Grand Teton National Park |
| GUCO | Guilford Courthouse National Military Park |
| GUGE | Gullah Geechee Cultural Heritage Corridor |
| GUIS | Gulf Islands National Seashore |
| GUMO | Guadalupe Mountains National Park |
| GW | Georgetown Waterfront |
| GWCA | George Washington Carver National Monument |
| GWMP | George Washington Memorial Parkway - Virginia |
| HAFE | Harpers Ferry National Historical Park |
| HAFO | Hagerman Fossil Beds National Monument |
| HAGR | Hamilton Grange National Memorial |
| HALE | Haleakala National Park |
| HAMP | Hampton National Historic Site |
| HATU | Harriet Tubman Underground Railroad National Historical Park |
| HAVO | Hawaii Volcanoes National Park |
| HC | Historic Camden |
| HEHO | Herbert Hoover National Historic Site |
| HFC | Harpers Ferry Center |
| HOAL | Horace M. Albright Training Center |
| HOBE | Horseshoe Bend National Military Park |
| HOCU | Hopewell Culture National Historical Park |
| HOFU | Hopewell Furnace National Historic Site |
| HOME | Homestead National Monument Of America |
| HONO | Honouliuli National Historic Site |
| HOSP | Hot Springs National Park |
| HOVE | Hovenweep National Monument |
| HSTR | Harry S. Truman National Historic Site |
| HURI | Hudson River Valley National Heritage Area |
| HUTR | Hubbell Trading Post National Historic Site |
| IATR | Ice Age National Scenic Trail |
| ICAG | Ice Age National Scientific Reserve |
| ICFL | Ice Age Floods National Geologic Trail |
| ILMI | Illinois And Michigan Canal National Heritage Corridor |
| IMRO | Intermountain Region |
| INDE | Independence National Historical Park |
| INDU | Indiana Dunes National Park |
| ISRO | Isle Royale National Park |
| IT | Illinois Trail |
| JAGA | James A. Garfield National Historic Site |
| JAZZ | New Orleans Jazz National Historical Park |
| JECA | Jewel Cave National Monument |
| JEFF | Gateway Arch National Park |
| JEFM | Jefferson Memorial |
| JELA | Jean Lafitte National Historical Park And Preserve |
| JICA | Jimmy Carter National Historic Site |
| JODA | John Day Fossil Beds National Monument |
| JODR | John D. Rockefeller Junior Memorial Parkway |
| JOFI | John Fitzgerald Kennedy National Historic Site |
| JOFK | John F. Kennedy Center For The Performing Arts |
| JOFL | Johnstown Flood National Memorial |
| JOMU | John Muir National Historic Site |
| JOTR | Joshua Tree National Park |
| JUBA | Juan Bautista De Anza National Historic Trail |
| KAHO | Kaloko-Honokohau National Historical Park |
| KAIW | Ka Iwi Shoreline |
| KALA | Kalaupapa National Historical Park |
| KATM | Katmai National Park And Preserve |
| KAWW | Katahdin Woods And Waters National Monument |
| KEFJ | Kenai Fjords National Park |
| KEMO | Kennesaw Mountain National Battlefield Park |
| KEWE | Keweenaw National Historical Park |
| KIMO | Kings Mountain National Military Park |
| KLGO | Klondike Gold Rush National Historical Park |
| KNRI | Knife River Indian Villages National Historic Site |
| KOVA | Kobuk Valley National Park |
| LABE | Lava Beds National Monument |
| LACL | Lake Clark National Park And Preserve |
| LAKE | Lake Mead National Recreation Area |
| LAMR | Lake Meredith National Recreation Area |
| LARO | Lake Roosevelt National Recreation Area |
| LASQ | Lafayette Square |
| LAVO | Lassen Volcanic National Park |
| LECL | Lewis And Clark National Historic Trail |
| LEWI | Lewis And Clark National Historical Park |
| LIBI | Little Bighorn Battlefield National Monument |
| LIBO | Lincoln Boyhood National Memorial |
| LIHI | Lincoln Highway |
| LIHO | Lincoln Home National Historic Site |
| LINC | Lincoln Memorial |
| LIRI | Little River Canyon National Preserve |
| LONG | Longfellow House - Washington's Headquarters National Historic Site |
| LOWA | Long Walk National Historic Trail |
| LOWE | Lowell National Historical Park |
| LYBA | Lyndon Baines Johnson Memorial Grove On The Potomac National Memorial/Lady Bird Johnson Park |
| LYJO | Lyndon B. Johnson National Historical Park |
| MAAC | Maine Acadian Culture |
| MABE | Mary McLeod Bethune Council House National Historic Site |
| MABI | Marsh-Billings-Rockefeller National Historical Park |
| MACA | Mammoth Cave National Park |
| MALU | Martin Luther King Junior National Historic Park |
| MAMC | Mary McLeod Bethune Council House National Historic Site |
| MANA | Manassas National Battlefield Park |
| MANZ | Manzanar National Historic Site |
| MAPR | Manhattan Project National Historical Park |
| MARO | Mid-Atlantic Region |
| MASI | Manhattan Sites |
| MAUR | Maurice Wild And Scenic River |
| MAVA | Martin Van Buren National Historic Site |
| MAWA | Maggie L. Walker National Historic Site |
| MEHI | Meridian Hill |
| MEIW | Mount Etna Iron Works |
| MEVE | Mesa Verde National Park |
| MICU | Mimbres Culture |
| MIIN | Minidoka National Historic Site |
| MIMA | Minute Man National Historical Park |
| MIMI | Minuteman Missile National Historic Site |
| MISP | Mill Springs Battlefield National Monument |
| MISS | Mississippi National River And Recreation Area |
| MNRR | Missouri National Recreational River |
| MOBE | Moccasin Bend National Historic Site - Proposed |
| MOCA | Montezuma Castle National Monument |
| MOCR | Moores Creek National Battlefield |
| MOJA | Mojave National Preserve |
| MONO | Monocacy National Battlefield |
| MOPI | Mormon Pioneer National Historic Trail |
| MORA | Mount Rainier National Park |
| MORR | Morristown National Historical Park |
| MORU | Mount Rushmore National Memorial |
| MRCC | Mississippi River Corridor Heritage Commission |
| MRDR | Mississippi River Delta Region |
| MUWO | Muir Woods National Monument |
| MWFA | Midwest Regional Office; Midwest Field Area |
| MWRO | Midwest Region |
| NABR | Natural Bridges National Monument |
| NACC | National Capital Parks Central - General |
| NACE | National Capital Parks-East |
| NAMA | National Mall & Memorial Parks |
| NARO | North Atlantic Region |
| NATC | Natchez National Historical Park |
| NATR | Natchez Trace Parkway; Brices Cross Roads National Battlefield Site; Tupelo National Battlefield |
| NAVA | Navajo National Monument |
| NCRO | National Capital Region |
| NCRW | National Capital Parks West - General |
| NEBE | New Bedford Whaling National Historical Park |
| NEJE | New Jersey Coastal Heritage Trail Route |
| NEPE | Nez Perce National Historical Park |
| NERI | New River Gorge National River |
| NERO | Northeast Regional Office |
| NICO | Nicodemus National Historic Site |
| NIMI | Niobrara National Scenic River |
| NIOB | Niobrara National Park |
| NISI | Ninety Six National Historic Site |
| NNPS | Non-National Park Service Areas |
| NOAT | Noatak National Preserve |
| NOCA | North Cascades National Park; Lake Chelan National Recreation Area; Ross Lake National Recreation Area |
| NOCO | North Country National Scenic Trail |
| NPSA | National Park Of American Samoa |
| NPSG | National Park Service-General |
| OBRI | Obed Wild And Scenic River |
| OCMU | Ocmulgee Mounds National Historical Park |
| OLST | The Old Stone House |
| OLYM | Olympic National Park |
| ORCA | Oregon Caves National Monument And Preserve |
| OREG | Oregon National Historic Trail |
| ORPI | Organ Pipe Cactus National Monument |
| OVVI | Overmountain Victory National Historical Trail |
| OZAR | Ozark National Scenic Riverways |
| PAAL | Palo Alto Battlefield National Historical Park |
| PAGR | Paterson Great Falls National Historical Park |
| PAIS | Padre Island National Seashore |
| PECO | Pecos National Historical Park |
| PEFO | Petrified Forest National Park |
| PERI | Pea Ridge National Military Park |
| PETE | Petersburg National Battlefield And Cemetery; Poplar Grove National Cemetery |
| PETR | Petroglyph National Monument |
| PEVI | Perry's Victory And International Peace Memorial |
| PGSO | Pacific Great Basin Support Office |
| PHSO | Philadelphia Support Office |
| PIMA | Hohokam Pima National Monument |
| PINE | New Jersey Pinelands National Reserve |
| PINN | Pinnacles National Park |
| PIPE | Pipestone National Monument |
| PIRO | Pictured Rocks National Lakeshore |
| PISC | Piscataway Park |
| PISO | Pacific Islands Support Office |
| PISP | Pipe Spring National Monument |
| PNRO | Pacific Northwest Region |
| POCH | Port Chicago Naval Magazine National Memorial |
| POEX | Pony Express National Historic Trail |
| POHE | Potomac Heritage National Scenic Trail |
| PORE | Point Reyes National Seashore |
| PRPA | Presidents Park-Grounds South Of White House (Ellipse) |
| PRWI | Prince William Forest Park |
| PUHE | Puukohola Heiau National Historic Site |
| PUHO | Pu'uhonua O Honaunau National Historical Park |
| PULL | Pullman National Historical Park |
| PWRO | Pacific West Regional Office |
| RABR | Rainbow Bridge National Monument |
| REDW | Redwood National Park |
| REER | Reconstruction Era National Historical Park |
| RICH | Richmond National Battlefield Park |
| RIGR | Rio Grande Wild And Scenic River |
| RIRA | River Raisin National Battlefield Park |
| RMRO | Rocky Mountain Region |
| ROCA | Roosevelt Campobello International Park |
| ROCR | Rock Creek Park; Peirce Mill |
| ROMO | Rocky Mountain National Park |
| RORI | Rosie The Riveter World War Ii Home Front National Historical Park |
| ROVA | Roosevelt-Vanderbilt National Historic Sites |
| ROWI | Roger Williams National Memorial |
| RUCA | Russell Cave National Monument |
| SAAN | San Antonio Missions National Historical Park |
| SACH | Saint Croix National Heritage Area |
| SACN | Saint Croix National Scenic River; Lower Saint Croix National Scenic Riverway |
| SACR | Saint Croix Island International Historic Site |
| SAFE | Santa Fe National Historic Trail |
| SAFR | San Francisco Maritime National Historical Park |
| SAGA | Saint-Gaudens National Historical Park |
| SAGU | Saguaro National Park |
| SAHI | Sagamore Hill National Historic Site |
| SAIR | Saugus Iron Works National Historic Site |
| SAJH | San Juan Island National Historical Park |
| SAJU | San Juan National Historic Site |
| SAMA | Salem Maritime National Historic Site |
| SAMO | Santa Monica Mountains National Recreation Area |
| SAND | Sand Creek Massacre National Historic Site |
| SAPA | Saint Paul's Church National Historic Site |
| SAPU | Salinas Pueblo Missions National Monument |
| SARA | Saratoga National Historical Park |
| SARI | Salt River Bay National Historical Park And Ecological Preserve |
| SCBL | Scotts Bluff National Monument |
| SEBE | Sewell-Belmont House National Historic Site |
| SEFA | Southeast Regional Office |
| SEKI | Sequoia And Kings Canyon National Parks |
| SEMO | Selma To Montgomery National Historic Trail |
| SERO | Southeast Region |
| SHEN | Shenandoah National Park |
| SHIL | Shiloh National Military Park And Cemetery |
| SHVA | Shenandoah Valley National Battlefield |
| SITK | Sitka National Historical Park |
| SJL | Stonewall Jackson Lake National Recreation Area |
| SLBE | Sleeping Bear Dunes National Lakeshore |
| SOCU | Southwest Cultural Resources Center |
| SPAR | Springfield Armory National Historic Site |
| STEA | Steamtown National Historic Site |
| STGE | Ste. Genevieve National Historical Park |
| STLI | Statue Of Liberty National Monument And Ellis Island National Monument |
| STMA | Stephen T. Mather Training Center |
| STON | Stonewall National Monument |
| STRI | Stones River National Battlefield And Cemetery |
| STSP | Star-Spangled Banner National Historic Trail |
| SUAN | Susan B. Anthony House |
| SUAS | Sudbury, Assabet And Concord Wild And Scenic River |
| SUCR | Sunset Crater Volcano National Monument |
| SUW | Suwannee National River |
| SWRO | Southwest Region |
| SWSO | Southwest Support Office |
| TAPR | Tallgrass Prairie National Preserve |
| TCH | Thomas Cole House National Historic Site |
| THIS | Theodore Roosevelt Island National Memorial |
| THKO | Thaddeus Kosciuszko National Memorial |
| THRB | Theodore Roosevelt Birthplace National Historic Site |
| THRI | Theodore Roosevelt Inaugural National Historic Site |
| THRO | Theodore Roosevelt National Park |
| THST | Thomas Stone National Historic Site |
| TICA | Timpanogos Cave National Monument |
| TIMU | Timucuan Ecological And Historic Preserve |
| TONT | Tonto National Monument |
| TOSY | Touro Synagogue National Historic Site |
| TRTE | Trail Of Tears National Historic Trail |
| TUAI | Tuskegee Airmen National Historic Site |
| TUIN | Tuskegee Institute National Historic Site |
| TULE | Tule Lake National Monument |
| TUMA | Tumacacori National Historical Park |
| TUSK | Tule Springs Fossil Beds National Monument |
| TUZI | Tuzigoot National Monument |
| ULSG | Ulysses S. Grant National Historic Site |
| UNRA | Underground Railroad |
| UPDE | Upper Delaware Scenic And Recreational River |
| USAR | U.S.S. Arizona Memorial |
| VAFO | Valley Forge National Historical Park |
| VALL | Valles Caldera National Preserve |
| VALR | Pearl Harbor National Memorial |
| VAMA | Vanderbilt Mansion National Historic Site |
| VICA | Vicksburg Campaign Trail |
| VICK | Vicksburg National Military Park And Cemetery |
| VICR | Virgin Islands Coral Reef National Monument |
| VIET | Vietnam Veterans Memorial |
| VIIS | Virgin Islands National Park |
| VOYA | Voyageurs National Park |
| VR | Vermejo Ranch |
| WABA | Washita Battlefield National Historic Site |
| WACA | Walnut Canyon National Monument |
| WACC | Western Archeological And Conservation Center |
| WACO | Waco Mammoth National Monument |
| WAPA | War In The Pacific National Historical Park |
| WARO | Washington-Rochambeau Revolutionary Route National Historic Trail |
| WASH | Washington Monument |
| WASO | Washington Area Servicing Office |
| WEAR | Western Arctic National Parklands |
| WEFA | Weir Farm National Historic Site |
| WEPO | West Potomac Park; Constitution Gardens; Korean War Veterans Memorial |
| WEST | Western Historic Trails |
| WHEE | Wheeling National Heritage Area |
| WHHO | White House-Grounds |
| WHIS | Whiskeytown-Shasta-Trinity National Recreation Area |
| WHMI | Whitman Mission National Historic Site |
| WHSA | White Sands National Park |
| WICA | Wind Cave National Park |
| WICL | William Jefferson Clinton Birthplace Home National Historic Site |
| WICR | Wilson's Creek National Battlefield |
| WIHO | William Howard Taft National Historic Site |
| WOKN | Wounded Knee National Memorial |
| WORI | Women's Rights National Historical Park |
| WOTR | Wolf Trap National Park For The Performing Arts |
| WRBR | Wright Brothers National Memorial |
| WRO | Western Region |
| WRST | Wrangell-St. Elias National Park And Preserve |
| WSMR | White Sands Missile Range National Monument |
| WUPA | Wupatki National Monument |
| X008 | Red Hill Patrick Henry National Memorial |
| X631 | Wolf National Scenic Riverway |
| X810 | Lincoln Park |
| X811 | Mount Vernon Square |
| X812 | Franklin Square |
| X816 | White House-Mansion |
| X818 | Farragut Square |
| X819 | Rawlins Park |
| X820 | Stanton Park |
| X822 | Folger Park |
| X823 | Marion Park |
| X826 | Dupont Circle |
| X830 | Grant Circle |
| X832 | Fort Circle Parks |
| X834 | Suitland Parkway, Camp Springs Military Highway |
| X836 | Glover Archbold Parkway; Childrens Playground |
| X839 | Whitehaven Parkway |
| X840 | James Monroe Park, Miscellaneous Triangles, Parking |
| X845 | Sherman Circle |
| X847 | Potomac Palisades Parkway |
| X848 | Shepherd Parkway |
| X849 | Brentwood Park, Patterson Tract |
| X859 | Pinehurst Parkway |
| X861 | Melvin C. Hazen Park, Bureau Of Standards Valley |
| X862 | Miscellaneous Triangles - 57, 57D, 58, 59, 62, 62A, And B, 64, 64A, And, B, 65, 67 |
| X867 | Arlington Memorial Bridge And Approaches |
| X869 | City Of Washington Maps |
| X870 | National Capital Parks Standard Drawings |
| X873 | Union Station Plaza, Columbus Fountain |
| X874 | McPherson Square |
| X875 | Samuel Gompers Memorial Park, E. J. Kelly Park And Miscellaneous Triangles |
| X876 | Miscellaneous Triangles - Most Reservaton Numbers Between 146 And 190 |
| X877 | Garfield Monument; Peace Monument And Miscellaneous Triangles |
| X878 | Rabaut Park, Miscellaneous Triangles And Parking |
| X883 | Fort Dupont Park |
| X884 | Fort Kemble Park; Battery Kemble Park |
| X885 | Fort Mahan Park |
| X886 | Fort Reno Park |
| X889 | Fort Stevens Park |
| X892 | Twining Square, Miscellaneous Circles, Triangles, And Parking |
| X893 | Buzzards Point, Bryce And Woodley Park, Pershing Square Miscellaneous Triangles - Ward Circle |
| X971 | National Park Service Standard Reference Drawings And Details |
| X998 | National Park Service Statistical Unit |
| XP92 | Charleston School District |
| YELL | Yellowstone National Park |
| YNWR | Youghiogheny National Wild River |
| YOSE | Yosemite National Park |
| YUCH | Yukon-Charley Rivers National Preserve |
| YUHO | Yucca House National Monument |
| YUK | Yukon Wild And Scenic River |
| ZION | Zion National Park |
| ZUCI | Zuni-Cibola National Historical Park |