Land Use Data for Latitude 38.75 Longitude -77.25

Locations

Chesapeake & Ohio Canal National Hist. Park George Washington Memorial Parkway National Capital Parks - Central Prince William Forest Park Rock Creek Park Thomas Stone National Historic Site

Agricultural Land Uses

Forestry - Pastoralism if moderate or higher
Rainfed agriculture (Subsistence/Commercial)
Cropped Agriculture with intensive livestock
Urban land

Ecosystems

Temperate humid

Livestock

Cattle
Pigs
Poultry

Crops

Cereals and cereal products
Maize
Oil-bearing crops
Soybeans

Growing Period (days)

210 to 239
240 to 269

Soil Types

Acrisols
Luvisols

Terrain

Plain or plateau

Slopes (degrees)

0.5 to 2
2 to 5
5 to 8

Population Density (persons per km²)

10 to 50
50 to 250
above 250

Infant mortality (per 1000 live births)

5 to 10

Mineral Extraction

Site Name (Type)	Minerals
	Iron
	Sand and Gravel, Construction
	Iron, Copper
	Copper, Silver
Agnewville Prospect	Sulfur-Pyrite, Arsenic, Gold
Agnewville Prospect	Gold, Sulfur
Brentsville Prospect	Copper
Bull Run Occurrence	Gold
Chantilly Crushed Stone Inc. (Surface)	Stone, Crushed/Broken
Chantilly Crushed Stone, Inc. Quarry	Stone, Crushed/Broken
Chantilly Prospect	Copper
Chantilly Prospect A	Copper
Chantilly Prospect B	Copper, Silver
Clay Deposit	Clay
Clay Deposit Sw of Pohick	Clay
Clay Prospect	Clay
Clay Prospect Se of Dumfries	Clay
Fairfax Quarry (Surface)	Stone, Crushed/Broken
Fairfax Quarry Prospect (Surface)	Copper
Franconia Gravel Co. Pits	Sand and Gravel, Construction
Franconia Gravel No. 1 (Surface)	Sand and Gravel, Construction
Graham Virginia Quarry (Surface)	Stone, Crushed/Broken
Graham-Virginia Granite Quarry	Granite
Greenbriar Prospect	Iron, Copper
Greenwood Prospect	Gold
Hilltop Sand and Gravel Co. Pits	Sand and Gravel, Construction
Hilltop Sand and Gravel Pit (Surface)	Sand and Gravel, Construction
Hise Prospect	Asbestos, Stone, Crushed/Broken
Jenkins Farm Prospect	Copper
Joplin Prospect	Sulfur-Pyrite
Joplin Prospect	Sulfur
Leebrick Bros. Inc. Sand and Gravel Pit	Sand and Gravel, Construction
Loudoun Quarries, Inc	Stone, Crushed/Broken
Loudoun Quarry,Div of Chant (Surface)	Stone, Crushed/Broken
Manassas Occurrence	Barium-Barite
Manassas Quarry	Stone, Crushed/Broken
No. 2 (Surface)	Granite
Potomac Sand & Gravel Co. Prospect	Sand and Gravel, Construction
Potomac Sand and Gravel Co. Dredge Deposit	Sand and Gravel, Construction
Rock Run Gold Placers	Gold
Schist Prospect	Mica
Shale Prospect	Clay
Shale Prospect Ne of Chantilly	Stone, Crushed/Broken
Shale Prospect Se of Floris	Stone, Crushed/Broken
Shale Prospect South of Bull Run	Stone, Crushed/Broken
Shale Prospect Sw of Sterling	Stone, Crushed/Broken
South Manassas Prospect	Barium-Barite
Spencer Farm Prospect	Copper
Stoneyhurst Quarry Number 1	Stone, Dimension
Stoneyhurst Quarry Number 3	Stone, Dimension
Toms Run Quarry	Silica
Virginia Concrete Co.Plant 4	Sand and Gravel, Construction