Service Description: The NHD is a national framework for assigning reach addresses to water-related entities, such as industrial discharges, drinking water supplies, fish habitat areas, wild and scenic rivers. Reach addresses establish the locations of these entities relative to one another within the NHD surface water drainage network, much like addresses on streets. Once linked to the NHD by their reach addresses, the upstream/downstream relationships of these water-related entities--and any associated information about them--can be analyzed using software tools ranging from spreadsheets to geographic information systems (GIS). GIS can also be used to combine NHD-based network analysis with other data layers, such as soils, land use and population, to help understand and display their respective effects upon one another. Furthermore, because the NHD provides a nationally consistent framework for addressing and analysis, water-related information linked to reach addresses by one organization (national, state, local) can be shared with other organizations and easily integrated into many different types of applications to the benefit of all. This dataset is NHD Model version 2.3.1. See Model Diagram at: https://ftpgeoinfo.msl.mt.gov/Data/Spatial/MSDI/Hydrography/
Service ItemId: 96abc25914ad40dfa2c4c2d48ef4d47f
Has Versioned Data: false
Max Record Count: 2000
Supported query Formats: JSON
Supports applyEdits with GlobalIds: False
Supports Shared Templates: True
All Layers and Tables
Layers:
Description: 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. This high-resolution NHD, generally developed at 1:24,000/1:12,000 scale, 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.) Local resolution NHD is being developed where partners and data exist. The NHD contains reach codes for networked features, flow direction, names, and centerline representations for areal water bodies. The NHD also incorporates the National Spatial Data Infrastructure framework criteria established by the Federal Geographic Data Committee.This dataset is NHD Model version 2.3.1. See Model Diagram at: https://ftpgeoinfo.msl.mt.gov/Data/Spatial/MSDI/Hydrography/
USGS, Montana State Library, and other contributors and base sources. See dataset feature-level metadata (tables: NHD Metadata, NHD Source Citation, and NHDFeatureToMetadata via key Meta_ProcessID; feature class to NHDFeatureMetadata via key Permenant_Identifier)
Spatial Reference: 32612 (32612)
Initial Extent:
XMin: 522693.779207062
YMin: 5030573.19216104
XMax: 535307.689468537
YMax: 5039756.86724634
Spatial Reference: 32612 (32612)
Full Extent:
XMin: 501634.079631653
YMin: 5002426.10648327
XMax: 539271.241268185
YMax: 5052018.5346861
Spatial Reference: 32612 (32612)
Units: esriMeters
Child Resources:
Info
SharedTemplates
Supported Operations:
Query
ConvertFormat
Get Estimates