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County
Allegheny County Hydrology Areas
Allegheny County / City of Pittsburgh / Western PA Regional Data Center —
The Hydrology Feature Dataset contains photogrammetrically compiled water drainage features and structures including rivers, streams, drainage canals, locks, dams,... -
County
Allegheny County Soil Type Areas
Allegheny County / City of Pittsburgh / Western PA Regional Data Center —
This dataset contains soil type and soil classification, by area. If viewing this description on the Western Pennsylvania Regional Data Center’s open data portal... -
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Perennial Streams
Fairfax County, Virginia —
Perennial streams in Fairfax County. Perennial streams are bodies of water flowing in a natural or man-made channel year-round, except during periods of drought. -
County
Allegheny County Wooded Area Boundaries
Allegheny County / City of Pittsburgh / Western PA Regional Data Center —
This dataset demarcates stands of trees (coniferous and deciduous) too numerous to plot as individual trees. The area is delineated following a generalized line... -
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Loudoun Geologic Surficial
Loudoun County, Virginia —
More Metadata"Surficial" is one of four layers which collectively describe the subsurface geologic formation, structural geology and surficial deposits. "Surficial"... -
County
Loudoun Forest
Loudoun County, Virginia —
More MetadataForest tracts is a base map data layer derived by automated processes and processed for cartographic representation at 1:2400 scale. The polygon features... -
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Marumsco Soils
Fairfax County, Virginia —
Marumsco soils in Fairfax County. Marumsco soils are mapped in complexes with other soil types. The complexes are highly variable and consist of combinations of... -
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Soil Properties - 2018
Fairfax County, Virginia —
Table of properties of soil types. One to many relate with the Soils 2018 layer. -
County
Allegheny County Watershed Boundaries
Allegheny County / City of Pittsburgh / Western PA Regional Data Center —
This dataset demarcates the 52 isolated sub-Watersheds of Allegheny County that drain to single point on the main stem rivers. Created by 3 Rivers 2nd Nature based... -
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Soils - 1990
Fairfax County, Virginia —
The soil classification areas from the 1990 soil survey for Fairfax County. Not all areas of Fairfax County were classified during this project so there are areas... -
County
A41-027-M19 Green Infrastructure Concept
Allegheny County / City of Pittsburgh / Western PA Regional Data Center —
Identifies opportunity sites throughout the A41, O27, and M19 Sewersheds for stormwater infrastructure that could fulfill both stormwater management needs and... -
County
Tree Cover - 1990
Fairfax County, Virginia —
Dataset describes forest cover types in Fairfax County, as they pertain to gypsy moth management. Data was created in-house by the Fairfax County Urban Forest... -
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Environmentally Sensitive Areas
Fairfax County, Virginia —
This polygon dataset is composed of subsets from Fairfax County’s current soil inventory, recorded floodplain, and Resource Protection Area (RPAs) layers. Layer... -
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County Impervious Surfaces 2017
Fairfax County, Virginia —
This layer was created by combining the following 2017 planimetric features into a single, countywide layer: major transportation, minor transportation, sidewalk...