Legend (GWMP/GWMP

Good Places to See Natural Communities (0)

Natural Highlights (1)

Visitor/Admin Buildings (2)

	Entrance Station
	NPS Administrative Buildings
	Park Police
	Visitor Center/ Gift Shop/ Ranger Station

Food and Water (3)

	Food Service
	Snack Bar

Restrooms (4)

Parking Lots (5)

Parking Area

Memorials & Statues (6)

Historic Sites (7)

	Historic Site
	Lighthouse

Recreational Facilities (8)

	Boat Ramp
	Campground
	Canoe/Small Boat Access
	Fishing
	Marina
	Pavilion
	Picnic Area
	Playground
	Sports

Transit Stops (9)

	Metro
	VRE
	WMATA Bus

Trails (Coarse Scale) (10)

Trails (Mid Scale) (11)

	Wheelchair Accessible Trails
	Bike and Foot Trails
	Horse and Foot Trails
	Foot, Bike and Horse Trails
	Other Foot Trails

Trails (Fine Scale) (12)

	Wheelchair Accessible Trails
	Bike and Foot Trails
	Horse and Foot Trails
	Foot, Bike and Horse Trails
	Other Foot Trails

Park Regions (14)

	Arlington House National Memorial
	Chesapeake and Ohio Canal
	George Washington Memorial Parkway
	Great Falls Park
	Jones Point Park
	Theodore Roosevelt Island
	U.S. Marine Corps War Memorial

Park Boundary (15)

Park Roads (16)

Topography (40ft) (17)

Topography (20ft) (18)

Topography (10ft) (19)

Topography (5ft) (20)

DC Bridges (21)

Open Water (22)

Streams (23)

Ecological Systems (Outlines) (24)

Natural Communities (Outlines) (25)

DC Boundary (26)

Natural Communities (Coarse Scale) (27)

	Natural Vegetation\|Forest and Woodland
	Natural Vegetation\|Shrubland and Grassland
	Semi-Natural Vegetation\|Forest and Woodland
	Semi-Natural Vegetation\|Shrubland and Grassland
	Not-So-Natural Vegetation\|Developed Vegetation
	Natural Non-Vegetated\|Freshwater
	Roads and Developed Areas\|Developed

Natural Communities (28)

	Natural Vegetation\|Forest and Woodland\|Basic Mesic Hardwood Forest
	Natural Vegetation\|Forest and Woodland\|Bedrock Oak Floodplain Forest
	Natural Vegetation\|Forest and Woodland\|Bedrock Terrace Oak - Hickory Forest
	Natural Vegetation\|Forest and Woodland\|Chestnut Oak Forest
	Natural Vegetation\|Forest and Woodland\|Dry-Mesic Acidic Oak - Hickory Forest
	Natural Vegetation\|Forest and Woodland\|Dry-Mesic Chestnut Oak - Northern Red Oak Forest
	Natural Vegetation\|Forest and Woodland\|Freshwater Tidal Forest
	Natural Vegetation\|Forest and Woodland\|High Terrace Hardwood Floodplain Forest
	Natural Vegetation\|Forest and Woodland\|Ice-Scour Floodplain Forest
	Natural Vegetation\|Forest and Woodland\|Maple-Ash Swamp Forest
	Natural Vegetation\|Forest and Woodland\|Mesic Mixed Hardwood Forest
	Natural Vegetation\|Forest and Woodland\|Mixed Oak / Heath Forest
	Natural Vegetation\|Forest and Woodland\|Oak Floodplain Forest
	Natural Vegetation\|Forest and Woodland\|Pin Oak - Swamp White Oak Forest
	Natural Vegetation\|Forest and Woodland\|Red Maple Seepage Swamp Forest
	Natural Vegetation\|Forest and Woodland\|Rich Boulderfield Forest
	Natural Vegetation\|Forest and Woodland\|Rich Cove / Mesic Slope Forest
	Natural Vegetation\|Forest and Woodland\|Rich Floodplain Forest
	Natural Vegetation\|Forest and Woodland\|Rich Red Oak - Sugar Maple Forest
	Natural Vegetation\|Forest and Woodland\|Riverscour Woodland Complex
	Natural Vegetation\|Forest and Woodland\|Riverside Outcrop Woodland
	Natural Vegetation\|Forest and Woodland\|Silver Maple Floodplain Forest
	Natural Vegetation\|Forest and Woodland\|Small Stream Floodplain Forest
	Natural Vegetation\|Forest and Woodland\|Upland Depression Willow Oak Swamp Forest
	Natural Vegetation\|Shrubland and Grassland\|Riverside Rock Outcrop and Prairie Complex
	Natural Vegetation\|Shrubland and Grassland\|Brackish Tidal Marsh
	Natural Vegetation\|Shrubland and Grassland\|Herbaceous Depositional Bar Complex
	Natural Vegetation\|Shrubland and Grassland\|Freshwater Tidal Mixed High Marsh
	Natural Vegetation\|Shrubland and Grassland\|Green Arrow-arum - Pickerelweed Tidal Marsh
	Natural Vegetation\|Shrubland and Grassland\|Broadleaf Pond-lily Tidal Marsh
	Natural Vegetation\|Shrubland and Grassland\|Water-lily Aquatic Wetland
	Semi-Natural Vegetation\|Forest and Woodland\|Forested Open Space
	Semi-Natural Vegetation\|Forest and Woodland\|Successional Tuliptree Forest (Rich Type)
	Semi-Natural Vegetation\|Forest and Woodland\|Successional Tuliptree - Oak Forest
	Semi-Natural Vegetation\|Forest and Woodland\|Successional Mixed Deciduous Forest
	Semi-Natural Vegetation\|Forest and Woodland\|Successional Virginia Pine Forest
	Semi-Natural Vegetation\|Forest and Woodland\|Successional Box-elder Floodplain Forest
	Semi-Natural Vegetation\|Forest and Woodland\|Successional Sweetgum Wet Forest
	Semi-Natural Vegetation\|Forest and Woodland\|Successional Woody Wetland
	Semi-Natural Vegetation\|Shrubland and Grassland\|Successional Common Reed Tidal Marsh
	Semi-Natural Vegetation\|Shrubland and Grassland\|Successional Herbaceous Wetland
	Semi-Natural Vegetation\|Shrubland and Grassland\|Successional Meadow / Grassland
	Semi-Natural Vegetation\|Shrubland and Grassland\|Successional Vine-Shrubland
	Not-So-Natural Vegetation\|Developed Vegetation\|Forested Open Space
	Not-So-Natural Vegetation\|Developed Vegetation\|Developed, Open Space
	Not-So-Natural Vegetation\|Developed Vegetation\|Cultivated Crops
	Natural Non-Vegetated\|Freshwater\|Open Water
	Roads and Developed Areas\|Developed\|Barren Land
	Roads and Developed Areas\|Developed\|C and O Canal Towpath
	Roads and Developed Areas\|Developed\|Developed, Low Intensity
	Roads and Developed Areas\|Developed\|Developed, Medium Intensity
	Roads and Developed Areas\|Developed\|Developed, High Intensity

Ecological Systems (Coarse Scale) (29)

	Natural Vegetation
	Semi- and Not-So-Natural Vegetation
	Natural Non-Vegetated
	Roads and Developed Areas

Ecological Systems (30)

	Natural Vegetation\|Dry Oak - (Pine) Forests and Woodlands
	Natural Vegetation\|Dry Oak - Pine Forests
	Natural Vegetation\|Dry-Mesic Oak Forests
	Natural Vegetation\|Hardpan Woodlands and Forests
	Natural Vegetation\|Mesic Hardwood Forests
	Natural Vegetation\|Cove Forests
	Natural Vegetation\|Basin Swamps and Wet Hardwood Forests
	Natural Vegetation\|Upland Depression Swamps
	Natural Vegetation\|Streams and Riparian
	Natural Vegetation\|Streams and Rivers
	Natural Vegetation\|River Floodplains
	Natural Vegetation\|Tidal Swamps
	Natural Vegetation\|Fresh and Oligohaline Tidal Marshes
	Semi- and Not-So-Natural Vegetation\|Semi-natural / Altered Vegetation and Conifer Plantations
	Semi- and Not-So-Natural Vegetation\|Cultivated Crops
	Semi- and Not-So-Natural Vegetation\|Developed, Open Space
	Natural Non-Vegetated\|Circumneutral Cliffs and Talus
	Natural Non-Vegetated\|Open Water
	Roads and Developed Areas\|Barren Land
	Roads and Developed Areas\|Developed, Low Intensity
	Roads and Developed Areas\|Developed, Medium Intensity
	Roads and Developed Areas\|Developed, High Intensity

Soil (Name) (31)

	Arlington National Cemetery
	Baile silt loam
	Beltsville silt loam
	Bibb sandy loam
	Blocktown channery silt loam
	Brinklow-Blocktown channery silt loams
	Chrome and Conowingo soils
	Chrome silt loam
	Codorus and Hatboro soils
	Codorus silt loam
	Croom very gravelly sandy loam
	Elk silt loam
	Elsinboro silt loam
	Fluvaquents
	Gaila silt loam
	Glenelg loam
	Glenelg silt loam
	Glenelg-Manor complex
	Glenville silt loam
	Grist Mill sandy loam
	Grist Mill-Gunston complex
	Grist Mill-Matapeake complex
	Grist Mill-Mattapex complex
	Grist Mill-Woodstown complex
	Gunston silt loam
	Hatboro silt loam
	Honga peat
	Huntington silt loam
	Kingstowne-Beltsville complex
	Kingstowne-Sassafras-Marumsco complex
	Kingstowne-Sassafras-Neabsco complex
	Kingstowne-Sassfras complex
	Lindside loam
	Lindside silt loam
	Lunt-Marumsco complex
	Manor channery loam
	Matapeake silt loam
	Mattapex loam
	Meadowville loam
	Melvin silt loam
	Rhodhiss-Rock outcrop complex
	Rock outcrop-Blocktown complex
	Sassafras gravelly sandy loam
	Sassafras sandy loam
	Sassafras-Marumsco complex
	Sumerduck loam
	Travilah silt loam
	Udifluvents
	Udorthents
	Urban complex
	Watchung silty clay loam
	Water
	Wheaton loam
	Wheaton-Codorus complex
	Wheaton-Glenelg complex
	Wheaton-Meadowville complex
	Wheaton-Sumerduck complex
	Woodstown sandy loam

Soil (Texture) (33)

	silty clay loam
	channery silt loam
	water
	peat
	mixed
	loam
	gravelly sandy loam
	very gravelly sandy loam
	sandy loam
	silt loam
	channery loam

Surficial Geology (Name) (34)

	Qaf - Artificial fill
	Qd - Debris
	Qa - Alluvium
	Qc - Colluvium
	QTt, Qt, Tt - Terraces
	Kp, Kpc, Kps - Potomac Formation
	QTe – Low Level Fluvial and Estuarine Deposits

Surficial Geology (Structure) (35)

	Medium to Coarse
	Mixed
	Somewhat Fine

Bedrock Geology (Name) (36)

	Dl - Lamprophyre dike
	Ogh - Georgetown Intrusive Suite, biotite-hornblende tonalite
	Ogb - Georgetown Intrusive Suite, biotite tonalite
	Ogv - Georgetown Intrusive Suite, serpentinite-schist
	Odm - Dalecarlia Intrustive Suite, biotite monzogranite and granodiorite
	Odt - Dalecarlia Intrusive Suite, muscovite trondjemite
	Ob - Bear Island Granodiorite
	Cs - Sykesville Formation
	CZmg - Mather Gorge Formation, metagraywacke
	CZmm - Mather Gorge Formation, migmatite
	CZmp - Mather Gorge Formation, phyllonite
	CZms - Mather Gorge Formtion, schist
	CZa - Amphibolite and ultramafic rock

Bedrock Geology (Chemistry) (37)

	basic
	somewhat acidic
	acidic with inclusions of more basic rocks
	acidic
	very acidic

Ecoregions (38)

	Northern Piedmont
	Piedmont
	Southeastern Plains

Natural Communities (All Locations) (39)

	Natural Vegetation\|Forest and Woodland\|Basic Mesic Hardwood Forest
	Natural Vegetation\|Forest and Woodland\|Bedrock Oak Floodplain Forest
	Natural Vegetation\|Forest and Woodland\|Bedrock Terrace Oak - Hickory Forest
	Natural Vegetation\|Forest and Woodland\|Chestnut Oak Forest
	Natural Vegetation\|Forest and Woodland\|Dry-Mesic Acidic Oak - Hickory Forest
	Natural Vegetation\|Forest and Woodland\|Dry-Mesic Chestnut Oak - Northern Red Oak Forest
	Natural Vegetation\|Forest and Woodland\|Freshwater Tidal Forest
	Natural Vegetation\|Forest and Woodland\|High Terrace Hardwood Floodplain Forest
	Natural Vegetation\|Forest and Woodland\|Ice-Scour Floodplain Forest
	Natural Vegetation\|Forest and Woodland\|Maple-Ash Swamp Forest
	Natural Vegetation\|Forest and Woodland\|Mesic Mixed Hardwood Forest
	Natural Vegetation\|Forest and Woodland\|Mixed Oak / Heath Forest
	Natural Vegetation\|Forest and Woodland\|Oak Floodplain Forest
	Natural Vegetation\|Forest and Woodland\|Pin Oak - Swamp White Oak Forest
	Natural Vegetation\|Forest and Woodland\|Red Maple Seepage Swamp Forest
	Natural Vegetation\|Forest and Woodland\|Rich Boulderfield Forest
	Natural Vegetation\|Forest and Woodland\|Rich Cove / Mesic Slope Forest
	Natural Vegetation\|Forest and Woodland\|Rich Floodplain Forest
	Natural Vegetation\|Forest and Woodland\|Rich Red Oak - Sugar Maple Forest
	Natural Vegetation\|Forest and Woodland\|Riverscour Woodland Complex
	Natural Vegetation\|Forest and Woodland\|Riverside Outcrop Woodland
	Natural Vegetation\|Forest and Woodland\|Silver Maple Floodplain Forest
	Natural Vegetation\|Forest and Woodland\|Small Stream Floodplain Forest
	Natural Vegetation\|Forest and Woodland\|Upland Depression Willow Oak Swamp Forest
	Natural Vegetation\|Shrubland and Grassland\|Riverside Rock Outcrop and Prairie Complex
	Natural Vegetation\|Shrubland and Grassland\|Brackish Tidal Marsh
	Natural Vegetation\|Shrubland and Grassland\|Herbaceous Depositional Bar Complex
	Natural Vegetation\|Shrubland and Grassland\|Freshwater Tidal Mixed High Marsh
	Natural Vegetation\|Shrubland and Grassland\|Green Arrow-arum - Pickerelweed Tidal Marsh
	Natural Vegetation\|Shrubland and Grassland\|Broadleaf Pond-lily Tidal Marsh
	Natural Vegetation\|Shrubland and Grassland\|Water-lily Aquatic Wetland
	Semi-Natural Vegetation\|Forest and Woodland\|Forested Open Space
	Semi-Natural Vegetation\|Forest and Woodland\|Successional Tuliptree Forest (Rich Type)
	Semi-Natural Vegetation\|Forest and Woodland\|Successional Tuliptree - Oak Forest
	Semi-Natural Vegetation\|Forest and Woodland\|Successional Mixed Deciduous Forest
	Semi-Natural Vegetation\|Forest and Woodland\|Successional Virginia Pine Forest
	Semi-Natural Vegetation\|Forest and Woodland\|Successional Box-elder Floodplain Forest
	Semi-Natural Vegetation\|Forest and Woodland\|Successional Sweetgum Wet Forest
	Semi-Natural Vegetation\|Forest and Woodland\|Successional Woody Wetland
	Semi-Natural Vegetation\|Shrubland and Grassland\|Successional Common Reed Tidal Marsh
	Semi-Natural Vegetation\|Shrubland and Grassland\|Successional Herbaceous Wetland
	Semi-Natural Vegetation\|Shrubland and Grassland\|Successional Meadow / Grassland
	Semi-Natural Vegetation\|Shrubland and Grassland\|Successional Vine-Shrubland
	Not-So-Natural Vegetation\|Developed Vegetation\|Forested Open Space
	Not-So-Natural Vegetation\|Developed Vegetation\|Developed, Open Space
	Not-So-Natural Vegetation\|Developed Vegetation\|Cultivated Crops
	Natural Non-Vegetated\|Freshwater\|Open Water
	Roads and Developed Areas\|Developed\|Barren Land
	Roads and Developed Areas\|Developed\|C and O Canal Towpath
	Roads and Developed Areas\|Developed\|Developed, Low Intensity
	Roads and Developed Areas\|Developed\|Developed, Medium Intensity
	Roads and Developed Areas\|Developed\|Developed, High Intensity

Ecological Systems (All Locations) (40)

	Natural Vegetation\|Dry Oak - (Pine) Forests and Woodlands
	Natural Vegetation\|Dry Oak - Pine Forests
	Natural Vegetation\|Dry-Mesic Oak Forests
	Natural Vegetation\|Hardpan Woodlands and Forests
	Natural Vegetation\|Mesic Hardwood Forests
	Natural Vegetation\|Cove Forests
	Natural Vegetation\|Basin Swamps and Wet Hardwood Forests
	Natural Vegetation\|Upland Depression Swamps
	Natural Vegetation\|Streams and Riparian
	Natural Vegetation\|Streams and Rivers
	Natural Vegetation\|River Floodplains
	Natural Vegetation\|Tidal Swamps
	Natural Vegetation\|Fresh and Oligohaline Tidal Marshes
	Semi- and Not-So-Natural Vegetation\|Semi-natural / Altered Vegetation and Conifer Plantations
	Semi- and Not-So-Natural Vegetation\|Cultivated Crops
	Semi- and Not-So-Natural Vegetation\|Developed, Open Space
	Natural Non-Vegetated\|Circumneutral Cliffs and Talus
	Natural Non-Vegetated\|Open Water
	Roads and Developed Areas\|Barren Land
	Roads and Developed Areas\|Developed, Low Intensity
	Roads and Developed Areas\|Developed, Medium Intensity
	Roads and Developed Areas\|Developed, High Intensity

Legend (GWMP/GWMP_Map)