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1:250,000-scale Hydrologic Units of the United States

Dates

Release Date
1994-01-01
Publication Date

Citation

Steeves, P. and Nebert, D., 1994, 1:250,000-scale Hydrologic Units of the United States: U.S. Geological Survey data release, https://doi.org/10.5066/P9LRKZVU.

Summary

These data were released prior to the October 1, 2016 effective date for the USGS’s policy dictating the review, approval, and release of scientific data as referenced in USGS Survey Manual Chapter 502.8 Fundamental Science Practices: Review and Approval of Scientific Data for Release. The Geographic Information Retrieval and Analysis System (GIRAS) was developed in the mid 70s to put into digital form a number of data layers which were of interest to the USGS. One of these data layers was the Hydrologic Units. The map is based on the Hydrologic Unit Maps published by the U.S. Geological Survey Office of Water Data Coordination, together with the list descriptions and name of region, subregion, accounting units, and cataloging unit. [...]

Contacts

Originator :
Steeves, Peter and Douglas Nebert
Metadata Contact :
U.S. Geological Survey
SDC Data Owner :
Integrated Modeling & Prediction Division
USGS Mission Area :
Water Resources

Attached Files

Click on title to download individual files attached to this item.

huc250k.xml
Original FGDC Metadata

View
63.42 KB application/fgdc+xml
huc02_250k.e00.gz 658.65 KB application/x-gzip
huc19_250k_e00.zip 5.69 MB application/zip
huc19_250k_shp.zip 2.2 MB application/zip
huc18_250k.sdts.tgz 796.54 KB application/x-gzip
huc18_250k.e00.gz 926.5 KB application/x-gzip
huc17_250k.sdts.tgz 1.4 MB application/x-gzip
huc17_250k.e00.gz 1.73 MB application/x-gzip
huc16_250k.sdts.tgz 587.8 KB application/x-gzip
huc16_250k.e00.gz 683.74 KB application/x-gzip
huc15_250k.sdts.tgz 529.47 KB application/x-gzip
huc15_250k.e00.gz 623.74 KB application/x-gzip
huc14_250k.sdts.tgz 458.25 KB application/x-gzip
huc14_250k.e00.gz 541.91 KB application/x-gzip
huc13_250k.sdts.tgz 515.25 KB application/x-gzip
huc13_250k.e00.gz 643.6 KB application/x-gzip
huc12_250k.sdts.tgz 642.9 KB application/x-gzip
huc12_250k.e00.gz 840.31 KB application/x-gzip
huc11_250k.sdts.tgz 889.41 KB application/x-gzip
huc11_250k.e00.gz 1.12 MB application/x-gzip
huc10_250k.sdts.tgz 1.84 MB application/x-gzip
huc10_250k.e00.gz 2.4 MB application/x-gzip
huc09_250k.sdts.tgz 361.54 KB application/x-gzip
huc09_250k.e00.gz 556.74 KB application/x-gzip
huc08_250k.sdts.tgz 445.72 KB application/x-gzip
huc08_250k.e00.gz 556.19 KB application/x-gzip
huc07_250k.sdts.tgz 808.65 KB application/x-gzip
huc07_250k.e00.gz 1,018.92 KB application/x-gzip
huc06_250k.sdts.tgz 274.35 KB application/x-gzip
huc06_250k.e00.gz 318.92 KB application/x-gzip
huc05_250k.sdts.tgz 780.36 KB application/x-gzip
huc05_250k.e00.gz 930.78 KB application/x-gzip
huc04_250k.sdts.tgz 742.5 KB application/x-gzip
huc04_250k.e00.gz 944.63 KB application/x-gzip
huc03_250k.sdts.tgz 921.16 KB application/x-gzip
huc03_250k.e00.gz 1.1 MB application/x-gzip
huc02_250k.sdts.tgz 547.73 KB application/x-gzip
huc01_250k.sdts.tgz 379.96 KB application/x-gzip
huc01_250k.e00.gz 432.05 KB application/x-gzip
huc250k.sdts.tgz 11.48 MB application/x-gzip
huc250k.e00.zip 15.75 MB application/zip
huc250k.zip 12.31 MB application/zip
huc250k_shp.zip 20.13 MB application/zip

Purpose

This data set was compiled originally to provide the National Water Quality Assessment (NAWQA) study units with an intermediate- scale river basin boundary for extracting other GIS data layers. The data can also be used for illustration purposes at intermediate or small scales (1:250,000 to 1:2 million).

Map

Communities

  • Model Data Management Function (MDMF)

Tags

Provenance

These data were originally released on the Water Mission Area National Spatial Data Infrastructure Node and were migrated to sciencebase.gov in 2023. These data were released prior to the October 1, 2016 effective date for the USGS's policy dictating the review, approval, and release of scientific data as referenced in USGS Survey Manual Chapter 502.8 Fundamental Science Practices: Review and Approval of Scientific Data for Release.

Additional Information

Identifiers

Type Scheme Key
DOI https://www.sciencebase.gov/vocab/category/item/identifier doi:10.5066/P9LRKZVU

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