Codes for the Identification of Hydrologic Units in the United States and the Caribbean Outlying Areas

U.S. Geological Survey, Geological Survey Circular 878-A

Table of Contents

Introduction

Development of the codes

Description of the codes

Hydrologic unit names

Hydrologic unit codes-Boundary descriptions and names of regions, subregions, accounting units, and cataloging units

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U.S. Department of the Interior, U.S. Geological Survey Persistent URL: http://pubsdata.usgs.gov/pubs/circ/circ878-A/html/toc.html Page Contact Information: USGS Publishing Network Last modified: Wednesday, November 23 2016, 12:27:28 PM

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