There are multiple ways to access hydrography data supported by AK HYDRO. The buttons below and the linked text in this paragraph will filter the data table below to display subsets of the available data based on source category. To access the most recent edited data, including features that may not have been integrated into the most recent version of the National Hydrography Dataset (NHD), filter the table to AK HYDRO. To access the most recent version of the NHD for all of Alaska or by subregion, filter the table to NHD Standard. In some targeted areas, the NHD has been augmented with additional attributes and raster data to form the Priority Waters NHD Plus HR Alpha product. Or click here to reset the table to show all data. The table below can also be filtered by data type or region using the filter option above the table to help users find available data. To contribute data to AK HYDRO, please coordinate by email with Kacy Krieger.
High Resolution NHD Plus is an integrated suite of application-ready geospatial data products, incorporating many of the best features of the NHD and the 3D Elevation Program (3DEP). NHD Plus, based on the high resolution NHD (1:24,000-scale or better), includes the stream network, feature names, “value added attributes” (VAA), and elevation-derived catchment rasters and other raster layers.
Browse Data
| Category | Region | Type | Name | Description | Link |
|---|---|---|---|---|---|
| NHD Standard | Alaska | Web Map Service | Alaska Statewide NHD | Web map service of the National Hydrography Dataset. |  |
| NHD Standard | Alaska | File Geodatabase | Alaska Statewide NHD | Download local copy of the National Hydrography Dataset Alaska Region (2.0 GB). |  |
| NHD Standard | Southeast | File Geodatabase | Southeast Alaska (1901) NHD | Download local copy of the National Hydrography Dataset Southeast Alaska Subregion (401 MB). | |
| NHD Standard | Southcentral | File Geodatabase | Southcentral Alaska (1902) NHD | Download local copy of the National Hydrography Dataset Southcentral Alaska Subregion (520 MB). | |
| NHD Standard | Southwest | File Geodatabase | Southwest Alaska (1903) NHD | Download local copy of the National Hydrography Dataset Southwest Alaska Subregion (446 MB). | |
| NHD Standard | Northwest | File Geodatabase | Northwest Alaska (1905) NHD | Download local copy of the National Hydrography Dataset Northwest Alaska Subregion (300 MB). | |
| NHD Standard | Arctic | File Geodatabase | Arctic Alaska (1906) NHD | Download local copy of the National Hydrography Dataset Arctic Alaska Subregion (350 MB). | |
| NHD Standard | Upper Yukon | File Geodatabase | Upper Yukon River (1907) NHD | Download local copy of the National Hydrography Dataset Upper Yukon River Subregion (125 MB). | |
| NHD Standard | Middle Yukon | File Geodatabase | Middle Yukon River (1908) NHD | Download local copy of the National Hydrography Dataset Middle Yukon River Subregion (220 MB). | |
| NHD Standard | Lower Yukon | File Geodatabase | Lower Yukon River (1909) NHD | Download local copy of the National Hydrography Dataset Lower Yukon River Subregion (229 MB). | |