Flowline - Large Scale

The National Hydrography Dataset (NHD) is a feature-based database that interconnects and uniquely identifies the stream segments or reaches that make up the nation's surface water drainage system. NHD data was originally developed at 1:100,000 scale and exists at that scale for the whole country. High resolution NHD adds detail to the original 1:100,000-scale NHD. (Data for Alaska, Puerto Rico and the Virgin Islands was developed at high-resolution, not 1:100,000 scale.) Like the 1:100,000-scale NHD, high resolution NHD contains reach codes for networked features and isolated lakes, flow direction, names, stream level, and centerline representations for areal water bodies. Reaches are also defined to represent waterbodies and the approximate shorelines of the Great Lakes, the Atlantic and Pacific Oceans and the Gulf of Mexico. The NHD also incorporates the National Spatial Data Infrastructure framework criteria set out by the Federal Geographic Data Committee.

Data and Resources

Field Value
accessLevel public
catalog_@context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
catalog_@id https://data.oregon.gov/data.json
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://www.arcgis.com/home/item.html?id=ee639dd78b50480c988788f66cd82b9f&sublayer=6
issued 2024-01-18
landingPage https://geohub.oregon.gov/datasets/oregon-geo::flowline-large-scale
metadata_type geospatial
modified 2024-01-18
old-spatial -179.1501,-14.3741,179.7751,71.3904
publisher U.S. Geological Survey
resource-type Dataset
source_datajson_identifier true
source_hash 2e2904c66c37acd0a512b95e1cbe87085138d986f3e3725de5f90a52eb55c43b
source_schema_version 1.1
spatial {"type": "Polygon", "coordinates": [[[-179.1501, -14.3741], [-179.1501, 71.3904], [179.7751, 71.3904], [179.7751, -14.3741], [-179.1501, -14.3741]]]}
theme {geospatial}
Groups
  • AmeriGEOSS
  • National Provider
  • North America
Tags
  • AmeriGEO
  • AmeriGEOSS
  • CKAN
  • GEO
  • GEOSS
  • National
  • North America
  • United States
  • environment
  • geoscientificinformation
  • hydrography
  • inlandwaters
  • us
isopen False
license_id notspecified
license_title License not specified
maintainer OR_FRAMEWORK
maintainer_email gis.info@das.oregon.gov
metadata_created 2025-09-24T01:01:51.874678
metadata_modified 2025-09-24T01:01:51.874689
notes <p>The National Hydrography Dataset (NHD) is a feature-based database that interconnects and uniquely identifies the stream segments or reaches that make up the nation's surface water drainage system. NHD data was originally developed at 1:100,000 scale and exists at that scale for the whole country. High resolution NHD adds detail to the original 1:100,000-scale NHD. (Data for Alaska, Puerto Rico and the Virgin Islands was developed at high-resolution, not 1:100,000 scale.) Like the 1:100,000-scale NHD, high resolution NHD contains reach codes for networked features and isolated lakes, flow direction, names, stream level, and centerline representations for areal water bodies. Reaches are also defined to represent waterbodies and the approximate shorelines of the Great Lakes, the Atlantic and Pacific Oceans and the Gulf of Mexico. The NHD also incorporates the National Spatial Data Infrastructure framework criteria set out by the Federal Geographic Data Committee.</p>
num_resources 7
num_tags 13
title Flowline - Large Scale