Access Hydrography Data for Alaska

To access the National Hydrography Dataset (NHD) and Watershed Boundary Dataset (WBD), visit: https://apps.nationalmap.gov/downloader/#/

To access hydrography related WMS/WMTS, visit: https://apps.nationalmap.gov/services/

To download the NHDPlus HR by 4-digit Hydrologic Unit (HU4) or by 8-digit Hydrologic Unit (HU8) for Alaska: https://prd-tnm.s3.amazonaws.com/index.html?prefix=StagedProducts/Hydrography/NHDPlusHR/Beta/GDB/