nhdplus

Uses USGS/MERIT Basin data to visualize the path of a rain droplet to its endpoint.

Landscape summaries of natural and anthropogenic landscape features for ~2.65 million streams, and their associated catchments, within the conterminous USA

A part of HyRiver software stack that provides access to NHDPlus data through web services

Network Linked Data Index Navigation Web Services

Personal side-project to provide EPA's NHDPlusInWATERS as a concise portable product for analysis

Fetch Stream Network Characteristics form NHDPlus V2

Material for March Tribal Coding Retreat

A PostGIS‑driven geospatial workflow that builds a hex‑grid flood‑risk surface by integrating road geometry, hydrology proximity metrics, and terrain features into a reproducible spatial analysis pipeline.