skip to content | skip to navigation

GIS.NY.GOV

NYS ITS GIS Program Office

Geographic Information Systems Clearinghouse

GIS Data Set Details

Data Set Name Description Theme Metadata
Hydrologic Units The United States is divided and sub-divided into successively smaller hydrologic units which are classified into four levels: regions, sub-regions, accounting units, and cataloging units. The hydrologic units are arranged within each other, from the smallest (cataloging units) to the largest (regions).   Hydrography
Metadata

Supporting Documentation

 

Contact Information:

Douglas Freehafer
425 Jordan Road
RPI Technology Park
Troy, New York  12180-8349

PH: 518-285-5620
FAX: 518-285-5601
dfreehaf@usgs.gov E-Mail