The USGS Stream Mapper is a QGIS plugin for quickly visualizing upstream or downstream flow-lines and upstream contribution area for a given USGS station using the NHD network. A user simply provides a USGS site number and selects a way to navigate the network and a layer will be populated within QGIS.

Supported navigation types:

• Upstream contributing basin
• Downstream with diversions
• Downstream main channel only
• Upstream main channel only
• Upstream with tributaries

Installation

1. Open QGIS >= 3.0
2. In the status bar, go to Plugins, then Manage and Install Plugins...
3. Under the All tab, search for USGS Stream Mapper
4. Click Install Plugin

Acknowledgements

This project uses the USGS's Hydro-Network Linked Data Index, for details please visit their website or repository.

Other great projects:

• Hydrodata: A python portal to access hydrology and climatology data
• Hydrolink: Python package with methods to hydrolink (address) point information to National Hydrography Datasets using web services