GRBA
Great Basin NP
National Park
Pacific West
National Park Service
Great Basin
MEVE
Mesa Verde NP
Intermountain
Mesa Verde
NEPE
Nez Perce NHP
National Historical Park
DAAV
Dayton Aviation Heritage NHP
Midwest
TAPR
Tallgrass Prairie N PRES
National Preserve
CARI
Cane River Creole NHP
Southeast
NICO
Nicodemus NHS
National Historic Site
NAVA
Navajo NM
National Monument
ADAM
Adams NHP
Northeast
BOST
Boston NHP
WICR
Wilson's Creek NB
National Battlefield
FODA
Fort Davis NHS
PAAL
Palo Alto Battlefield NHP
EUON
Eugene O'Neill NHS
AZRU
Aztec Ruins NM
CHCU
Chaco Culture NHP
FLNI
Flight 93 N MEM
National Memorial
SAMA
Salem Maritime NHS
SITK
Sitka NHP
Alaska
KLGO
Klondike Gold Rush NHP
FOLA
Fort Laramie NHS
MACA
Mammoth Cave NP
Mammoth Cave
BOAF
Boston African American NHS
EDAL
Edgar Allan Poe NHS
COWP
Cowpens NB
NATC
Natchez NHP
WICL
President William Jefferson Clinton Birthplace Home NHS
HOSP
Hot Springs NP
Hot Springs
HSTR
Harry S Truman NHS
SARI
Salt River Bay NHP & E PRES
National Historical Park and Ecological Preserve
TUAI
Tuskegee Airmen NHS
PAGR
Paterson Great Falls NHP
EDIS
Thomas Edison NHP
CHIC
Chickasaw NRA
National Recreation Area
GRPO
Grand Portage NM
MIMI
Minuteman Missile NHS
FOUS
Fort Union Trading Post NHS
DEPO
Devils Postpile NM
KALA
Kalaupapa NHP
VALR
World War II Valor in the Pacific NM--Pearl Harbor Sites
World War II Valor in the Pacific NM--Tule Lake Site
World War II Valor in the Pacific NM--Atka Site
World War II Valor in the Pacific NM--Kiska Site
World War II Valor in the Pacific NM--Attu Site
CABR
Cabrillo NM
FOWA
Fort Washington Park
Park
National Capital
CLBA
Clara Barton NHS
GWMP
George Washington MEM PKWY
Memorial Parkway
VAFO
Valley Forge NHP
AFBG
African Burial Ground NM
PUHO
Pu'uhonua o Honaunau NHP
PUHE
Pu'ukohola Heiau NHS
ULSG
Ulysses S. Grant NHS
KAHO
Kaloko-Honokohau NHP
ALFL
Alibates Flint Quarries NM
VICR
Virgin Islands Coral Reef NM
CHAM
Chamizal N MEM
HUTR
Hubbell Trading Post NHS
KEMO
Kennesaw Mountain NBP
National Battlefield Park
CAVE
Carlsbad Caverns NP
Carlsbad Caverns
GWCA
George Washington Carver NM
MORU
Mount Rushmore N MEM
JODR
John D. Rockefeller, Jr. MEM PKWY
CUVA
Cuyahoga Valley National Park
Cuyahoga Valley
BRCA
Bryce Canyon NP
Bryce Canyon
MANZ
Manzanar NHS
PISC
Piscataway Park
THST
Thomas Stone NHS
FOFR
Fort Frederica NM
DRTO
Dry Tortugas NP
Dry Tortugas
JELA
Jean Lafitte NHP & PRES
National Historical Park and Preserve
JAZZ
New Orlean Jazz National Historical Park
KNRI
Knife River Indian Villages NHS
LABE
Lava Beds NM
DESO
De Soto N MEM
ABLI
Abraham Lincoln Birthplace NHP
LIHO
Lincoln Home NHS
LIBO
Lincoln Boyhood N MEM
MOCA
Montezuma Castle NM
SAJU
San Juan NHS
VIIS
Virgin Islands NP
Virgin Islands
COSW
Congaree NP
Congaree
WACA
Walnut Canyon NM
KEWE
Keweenaw NHP
JAGA
James A Garfield NHS
HEHO
Herbert Hoover NHS
FOUN
Fort Union NM
PIPE
Pipestone NM
HOVE
Hovenweep NM
THRO
Theodore Roosevelt NP--South Unit
T. Roosevelt NP South
Theodore Roosevelt NP--North Unit
T. Roosevelt NP North
EFMO
Effigy Mounds NM
FOBU
Fossil Butte NM
CACL
Castle Clinton NM
FEHA
Federal Hall N MEM
SAPA
Saint Paul's Church NHS
MIMA
Minute Man NHP
ANJO
Andrew Johnson NHS
GOIS
Governors Island NM
GEGR
General Grant N MEM
HAGR
Hamilton Grange N MEM
THRB
Theodore Roosevelt Birthplace NHS
ELMO
El Morro NM
PISP
Pipe Spring NM
FILA
First Ladies NHS
FOSM
Fort Smith NHS
CHSC
Little Rock Central High School NHS
BRVB
Brown v. Board of Education NHS
CATO
Catoctin Mountain Park
WAPA
War in the Pacific NHP
FOTH
Ford's Theatre NHS
FRDO
Frederick Douglass NHS
MAMC
Mary McLeod Bethune Council House NHS
WHIS
Whiskeytown NRA
ELRO
Eleanor Roosevelt NHS
HOFR
Home of Franklin D. Roosevelt NHS
SUCR
Sunset Crater Volcano NM
BOHA
Boston Harbor Islands NRA
HAFE
Harpers Ferry NHP
LEWI
Lewis and Clark NHP
ARCH
Arches NP
Arches
NACA
National Capital Parks
CEBR
Cedar Breaks NM
CHRI
Christiansted NHS
CAWO
Carter G. Woodson Home NHS
BUIS
Buck Island Reef NM
CHPI
Charles Pinckney NHS
NISI
Ninety Six NHS
WICA
Wind Cave NP
Wind Cave
TONT
Tonto NM
APCO
Appomattox Court House NHP
DETO
Devils Tower NM
FLFO
Florissant Fossil Beds NM
CARL
Carl Sandburg Home NHS
MALU
Martin Luther King, Jr. NHS
FOSU
Fort Sumter NM
BRCR
Brices Cross Roads NBS
National Battlefield Site
TUPE
Tupelo NB
GREE
Greenbelt Park
WUPA
Wupatki NM
CUGA
Cumberland Gap NHP
JICA
Jimmy Carter NHS
ARHO
Arlington House, The Robert E. Lee MEM
Memorial
LYBA
Lyndon Baines Johnson Memorial Grove on the Potomac
THIS
Theodore Roosevelt Island
TICA
Timpanogos Cave NM
CASA
Castillo de San Marcos NM
ANTI
Antietam NB
MONO
Monocacy NB
GRKO
Grant-Kohrs Ranch NHS
WOTR
Wolf Trap National Park for the Performing Arts
SCBL
Scotts Bluff NM
HOME
Homestead NM of America
WABA
Washita Battlefield NHS
YUHO
Yucca House NM
WHMI
Whitman Mission NHS
TUZI
Tuzigoot NM
TUMA
Tumacacori NHP
SAND
Sand Creek Massacre NHS
MANA
Manassas NBP
GOGA
Golden Gate NRA
GICL
Gila Cliff Dwellings NM
FOBO
Fort Bowie NHS
CHIR
Chiricahua NM
CAVO
Capulin Volcano
LIBI
Little Bighorn Battlefield NM
CEBE
Cedar Creek and Belle Grove NHP
BLCA
Black Canyon of the Gunnison NP
Black Canyon of the Gunnison
WRBR
Wright Brothers N MEM
WORI
Women's Rights NHP
WIHO
William Howard Taft NHS
WHHO
White House
WEFA
Weir Farm NHS
WASH
Washinton Monument
NAMA
National Mall
KOWA
Korean War Veterans MEM
FRDE
Franklin Delano Roosevelt MEM
LINC
Lincoln MEM
THJE
Thomas Jefferson MEM
WWII
World War II MEM
VIVE
Vietnam Veterans MEM
COGA
Constitution Gardens
VICK
Vicksburg NMP
National Military Park
VAMA
Vanderbilt Mansion NHS
TUIN
Tuskegee Institute NHS
TIMU
Timucuan EHP
Ecological and Historic Preserve
THRI
Theodore Roosevelt Inaugural NHS
THKO
Thaddeus Kosciuszko N MEM
STRI
Stones River NB
STEA
Steamtown NHS
STLI
Statue of Liberty NM
SPAR
Springfield Armory NHS
SHIL
Shiloh NMP
SAIR
Saugus Iron Works NHS
SARA
Saratoga NHP
SAJH
San Juan Island NHP
SAFR
San Francisco Maritime NHP
SAAN
San Antonio Missions NHP
SAPU
Salinas Pueblo Missions v
SAGA
Saint-Gaudens NHS
SACR
Saint Croix Island IHS
International Historic Site
SAGU
Saguaro NP East--Rincon Mountain District
Saguaro NP East
Saguaro NP West--Tuscon Mountain District
Saguaro NP West
SAHI
Sagamore Hill NHS
RUCA
Russell Cave NM
RORI
Rosie the Riveter/World War II Home Front NHP
ROWI
Roger Williams N MEM
ROCR
Rock Creek Park
RICH
Richmond NBP
RABR
Rainbow Bridge NM
PRWI
Prince William Forest Park
POPO
Poverty Point NM
PINN
Pinnacles NP
PETR
Petroglyph NM
PETE
Petersburg NB
RIRA
River Raisin NBP
PEVI
Perry's Victory and International Peace MEM
PAAV
Pennsylvania Avenue NHS
PECO
Pecos NHP
PERI
Pea Ridge NMP
ORCA
Oregon Caves NM
OCMU
Ocmulgee NM
NEBE
New Bedford Whaling NHP
NABR
Natural Bridges NM
NPSA
National Park of American Samoa--Tutuila Unit
NP of Amer. Samoa--Tutuila
National Park of American Samoa--Ofu Unit
NP of Amer. Samoa--Ofu
National Park of American Samoa--Ta'? Unit
NP of Amer. Samoa--Ta'?
MUWO
Muir Woods NM
MORR
Morristown NHP
MOCR
Moores Creek NB
MIIN
Minidoka NHS
MAVA
Martin Van Buren NHS
MABI
Marsh-Billings-Rockefeller NHP
MALW
Maggie L. Walker NHS
LYJO
Lyndon B. Johnson NHP
LOWE
Lowell NHP
LONG
Longfellow NHS
LIRI
Little River Canyon N PRES
LAMR
Lake Meredith NRA
KIMO
Kings Mountain NMP
JOFL
Johnstown Flood N MEM
JOMU
John Muir NHS
JOFI
John Fitzgerald Kennedy NHS
JODA
John Day Fossil Beds NM--Sheeprock Unit
John Day Fossil Beds NM--Clarno Unit
John Day Fossil Beds NM--Painted Hills Unit
JECA
Jewel Cave NM
JEFF
Jefferson National Expansion MEM
INDE
Independence NHP
HOBE
Horseshoe Bend NMP
HOFU
Hopewell Furnace NHS
HOCU
Hopewell Culture NHP
PIMA
Hohokam Pima NM
HAMP
Hampton NHS
HALE
Haleakala NP
Haleakala
HAFO
Hagerman Fossil Beds NM
GUCO
Guilford Courthouse NMP
GUMO
Guadalupe Mountains NP
Guadalupe Mountains
GOSP
Golden Spike NHS
GETT
Gettysburg NMP
GEWA
George Washington Birthplace NM
GERO
George Rogers Clark NHP
GATE
Gateway NRA
FRHI
Friendship Hill NHS
FRSP
Fredericksburg and Spotsylvania County Battlefields Memorial NMP
FRLA
Frederick Law Olmsted NHS
FOVA
Fort Vancouver NHS
FOST
Fort Stanwix NM
FOSC
Fort Scott NHS
FORA
Fort Raleigh NHS
FOPU
Fort Pulaski NM
FOPO
Fort Point NHS
FONE
Fort Necessity NB
FOMC
Fort McHenry NM & Historic Shrine
National Monument and Historic Shrine
FOMA
Fort Matanzas NM
FOLS
Fort Larned NHS
FODO
Fort Donelson NB
FOCA
Fort Caroline N MEM
EISE
Eisenhower NHS
EBLA
Ebey's Landing NH RES
National Historical Reserve
KLSE
Klondike Gold Rush NHP--Seattle Unit
DEWA
Delaware Water Gap NRA
CURE
Curecanti NRA
CUIS
Cumberland Island NS
National Seashore
CORO
Coronado N MEM
COLM
Colorado NM
FOMR
Fort Monroe NM
COLO
Colonial NHP
CIRO
City of Rocks N RES
National Reserve
CHCH
Chickamauga and Chattanooga NMP
CAGR
Casa Grande Ruins NM
CACH
Canyon de Chelly NM
BOWA
Booker T. Washington NM
BISC
Biscayne NP
Biscayne
BITH
Big Thicket N PRES--Turkey Creek Unit
Big Thicket N PRES--Birch Creek Unit
Big Thicket N PRES--Neches Bottom and Jack Gore Baygall Unit
Big Thicket N PRES - Beaumont Unit
Big Thicket N PRES--Big Sandy Creek Unit
Big Thicket N PRES--Lance Rosier Unit
BIHO
Big Hole NB
BEOL
Bent's Old Fort NHS
ARPO
Arkansas Post N MEM
APIS
Apostle Islands NL
National Lakeshore
ANDE
Andersonville NHS
AMIS
Amistad NRA
ALPO
Allegheny Portage Railroad NHS
AGFO
Agate Fossil Beds NM
ACAD
Acadia NP
Acadia
BAND
Bandelier NM
GREG
Great Egg Harbor SRR
Scenic and Recreational River
POHE
Potomac Heritage NST
National Scenic Trail
NATR
Natchez Trace Parkway NST
CECH
César E. Chávez NM