Headwater Summary Drag to move

Total Watersheds -

Headwaters -

Headwater % -

USGS Watershed Data Viewer

Fetch and display watershed boundaries directly from the USGS National Map API

Region

HUC Size

HUC Code (Optional) Tip: Click any watershed on the map to auto-fill this field!

Headwater Analysis Results

-

Total Watersheds

-

Headwaters
🔵 Blue on Map

-

Non-Headwaters
⚪ Gray on Map

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Headwater %

Analysis Details

Method: -

Data Source: -

Region: -

HUC Size: -

Download Results

Files generated in /outputs/ directory:

How to Use

Supported Regions & HUC Codes:

Region 03 (Tennessee):
• HUC10: 10-digit codes starting with "03"
• HUC12: 12-digit codes starting with "03"
Region 06 (Tennessee):
• HUC10: 10-digit codes starting with "06"
• HUC12: 12-digit codes starting with "06"
Region 08 (Tennessee):
• HUC10: 10-digit codes starting with "08"
• HUC12: 12-digit codes starting with "08"

Usage:

Fetch All: Select region and HUC size, leave HUC code empty
Filter Specific: Enter a specific HUC code to filter results

Example Specific Codes:

Region 03 HUC10: 0300000001
Region 03 HUC12: 030000000101
Region 06 HUC10: 0600000001
Region 06 HUC12: 060000000101
Region 08 HUC10: 0800000001
Region 08 HUC12: 080000000101

Features:

Direct API access to USGS data
Interactive map with zoom/pan
Automatic boundary fitting
Real-time data fetching
Region and HUC size validation

Restrictions:

Only HUC10 and HUC12 supported
Only Regions 03, 06, and 08 (Tennessee) supported
Cannot mix regions in same session