2021年5月10日 · Each unit is identified by a unique hydrologic unit code (HUC) consisting of two to eight digits based on its classification. The Hydrologic Unit Maps site provides information …

2024年9月3日 · Hydrologic Features: Includes Hydrologic Unit Code boundaries and labels, the NHD Plus V2 dataset, and waterscapes data; Political Boundaries: Includes political …

The USGS manages surface water and hydrologic unit mapping for the Nation as geospatial datasets. These include the National Hydrography Dataset (NHD) , Watershed Boundary …

Hydrologic units (HUs) represent the area of the landscape that drains to a portion of the stream network. More specifically, a hydrologic unit defines the areal extent of surface water drainage …

The National Map Download viewer provides an online mapping tool for downloading the NHDPlus HR, NHD and WBD as a shapefile or file geodatabase by Hydrologic Unit (HU), …

The USGS National Hydrography Dataset (NHD) service from The National Map is a comprehensive set of digital spatial data that encodes information about naturally occurring …

INE, Instituto Geográfico Nacional, Esri, HERE, Garmin, USGS, NGA | USGS TNM – National Hydrography Dataset. Data Refreshed January, 2025. Append these custom parameters to …

2024年2月15日 · Hydrology - Interactive Map Web Map by ICON_remote. Last Modified: February 15, 2024 (0 ratings, 0 comments, 286 views) More Details...

Interactive map providing hydrology information for Los Angeles County, including rainfall data, streamflow measurements, and watershed boundaries.

Access river level and other water information and weather conditions in your neighborhood! A map viewer showing real-time river level and water data collected at U.S. Geological Survey …