Hydrology Data

Streams — Lakes — Ponds — Wetlands  — HUC

Data Attributes

We distribute five kinds of Al-NHD data, all are available with a single click.

· Constructed Ponds

· Islands

· Streams

· Water Bodies (Polygonal)

· Wetlands

· HUC 12 Watersheds

All data are georeferenced to UTM Zone 16, WGS 84.

The following table is a representative template of attributes contained in each of the feature shapefiles.

Polygon for Constructed Ponds, Islands, Water Bodies, and Wetlands; Polyline for streams.

Geographic Names Information System

Reach Code to HUC 12 level

Respective HUC designations and HUC names for the reach segments including the River Basin name and the downstream (DS) HUC that receives the flow from each segment.