Loudoun Streams

More MetadataDrainage is a base map data layer derived by automated processes and processed for cartographic representation at 1:2400 scale. The line features represent the any visible surface drainage feature, natural or manmade, as seen from above and are mapped to National Map Accuracy Standards (NMAS). Drainage arcs must logically follow topo contours downhill and are not disconnected when traveling through culverts, under bridges or representing the centerline of double-line streams and ponds. Drain arcs will be captured according to proper orientation or direction of flow. Photogrammetrically derived drainage DOES includes known underground culvert and pipe connections with stormwater infrastructure points and other visible surface outlets. This drainage layer DOES NOT include subsurface groundwater flow, fine soil drain patterns in swales, or any other historical surface drains.

Data and Resources

Field	Value
accessLevel	public
catalog_@context	https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
catalog_conformsTo	https://project-open-data.cio.gov/v1.1/schema
catalog_describedBy	https://project-open-data.cio.gov/v1.1/schema/catalog.json
identifier	https://geohub-loudoungis.opendata.arcgis.com/datasets/LoudounGIS::loudoun-streams
issued	2017-09-11T13:42:12.000Z
landingPage	https://geohub-loudoungis.opendata.arcgis.com/datasets/LoudounGIS::loudoun-streams
license	https://logis.loudoun.gov/loudoun/disclaimer.html
metadata_type	geospatial
modified	2020-11-24T15:33:20.000Z
old-spatial	-77.9635,38.8416,-77.314,39.3236
publisher	Loudoun GIS
resource-type	Dataset
source_datajson_identifier	true
source_hash	b051b036a5f36d1b746eafc8500c32140e914557
source_schema_version	1.1
spatial	{"type": "Polygon", "coordinates": [[[-77.9635, 38.8416], [-77.9635, 39.3236], [-77.314, 39.3236], [-77.314, 38.8416], [-77.9635, 38.8416]]]}
theme	{geospatial}
Groups	AmeriGEOSS National Provider North America
Tags	amerigeo amerigeoss base-layer base-layers ckan drainage drains geo geoss national north-america open-data streams united-states water
isopen	False
license_id	other-license-specified
license_title	other-license-specified
maintainer	LoudounCounty
maintainer_email	mapping@loudoun.gov
metadata_created	2025-11-19T21:15:47.806727
metadata_modified	2025-11-19T21:15:47.806732
notes	<div><a href='https://logis.loudoun.gov/metadata/Drains.html' target='_blank'>More Metadata</a><br /></div><span style='color: rgb(0, 0, 0); font-family: "Times New Roman"; font-size: medium;'>Drainage is a base map data layer derived by automated processes and processed for cartographic representation at 1:2400 scale. The line features represent the any visible surface drainage feature, natural or manmade, as seen from above and are mapped to National Map Accuracy Standards (NMAS). Drainage arcs must logically follow topo contours downhill and are not disconnected when traveling through culverts, under bridges or representing the centerline of double-line streams and ponds. Drain arcs will be captured according to proper orientation or direction of flow. Photogrammetrically derived drainage DOES includes known underground culvert and pipe connections with stormwater infrastructure points and other visible surface outlets. This drainage layer DOES NOT include subsurface groundwater flow, fine soil drain patterns in swales, or any other historical surface drains.</span>
num_resources	6
num_tags	15
title	Loudoun Streams