Information
Discovery:
Active Projects
Databases
Publications
Reports

Data Integration:
Watersheds
Education

Case Studies:
Analysis
Assessment
Characterization
Management

Geographic Information:
GIS
GIS Education
GIS Software

Customer Service
Glossaries
Conferences/Events

Science in Your Watershed

Links By Watershed:

Find Major USGS Water Resources Links for Your Watershed by using a:

• Locate Watersheds - this mapping tool allows users to subdivide a water resource region map of the United States from Regions to Subregions, Accounting Units and finally to Cataloging Units - through the use of the hydrologic units codes (HUCS).
• An "Additional Information for this Watershed" link is available directly under each Cataloging Unit map for every HUC, which will display the following information for that watershed:

USGS Water Resources Links for "Your Watershed":

Major USGS Links:

• USGS Real-time Streamflow Stations "in Your Watershed"
• USGS Recent Daily Streamflow Data for Major Rivers "in Your Watershed"
• USGS Real-time Water Quality Samples Listed by Counties "in Your Watershed"
• USGS Water Quality Samples Listed by Counties "in Your Watershed"
• USGS Real-time Ground-Water Sites Listed by Counties "in Your Watershed"
• USGS Ground-water Inventory Sites Listed by Counties "in Your Watershed"
• Water Use Data "in Your Watershed" Covering the last 50 Years
• USGS Drought Watch - U.S. Map of Flood and High Flow Conditions "in Your Watershed"
• USGS WaterWatch - Region Map of Real-time Streamflow "in Your Watershed"
• USGS WaterWatch - Region Map of Real-time Flood and High Flow Conditions "in Your Watershed"
• When Available - Online NAWQA Data Studies "in Your Watershed"
• GIS Spatial Data Sets available on the WRD NSDI Node "in Your Watershed"
• Hierarchical Search USGS for Links, Publications and Web Sites Associated with "in Your Watershed" by:
• Cataloging Unit (8-digit HUC), and Cataloging Unit Name
• Accounting Unit (6-digit HUC), and Accounting Unit Name
• Subregion (4-digit HUC), and Subregion Name
• Region (2-digit HUC), and Region Name

• Biology NAS - Nonindigenous Aquatic Species "in Your 8-digit Watershed"
• Biology NAS - Nonindigenous Aquatic Species "in Your 6-digit Watershed"
• USGS Recreation: Your Earth Science Gateway for a Safer and More Enjoyable Experience of the Outdoors
• EPA - Impaired Waters for for Cataloging Unit "in Your Watershed"
• EPA - Storet Watershed Station Summary for the Cataloging Unit "in Your Watershed"
• EPA - Environmental Websites Involving the Cataloging Unit "in Your Watershed"
• EPA - Adopt Your Watershed for Cataloging Unit "in Your Watershed"
• NOAA - The National Weather Service - Significant River flood Outlook for Cataloging Unit "in Your Watershed"

Online USGS Watershed Information For:

• Links to Projects, Publications and Information for Cataloging Unit (8-digit HUC) "in Your Watershed"
• Links to Projects, Publications and Information for Accounting Unit (6-digit HUC)
• Links to Projects, Publications and Information for Subregion (4-digit HUC)
• Links to Projects, Publications and Information for Region (2-digit HUC)