NHD High Resolution (1:24K) Data Download

In partnership with the USGS, the Montana State Library is the State Steward of the National Hydrography Dataset.
The National Hydrography Dataset has been retired and will be replaced by the USGS 3D Hydrography Program (3DHP).  The data download provide here is the final snapshot of the NHD, 12/27/2023.

Information about the Downloadable Data

  • An FGDC metadata XML, readme, and NHD model diagram for the statewide hydrography dataset are provided with the download (metadata are also embedded in the geodatabase).

  • The data are in the Montana State Plane Coordinate System (NAD_1983_2011_StatePlane_Montana_FIPS_2500_meters).

  • The NHD geodatabase contains a geometric network ("HYDRO_NET"), which allows the user to identify upstream and downstream paths using the Utility Network Analyst for ArcGIS.

  • The main advantage of downloading from this Montana State Library page is data are provided in the Montana State Plane Coordinate System.  The NHD can also be accessed through the USGS’s National Hydrography Products page.