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Physiographic divisions of the conterminous U. S.

Dates

Release Date
1946-01-01
Time Period
1946-01-01
Publication Date

Citation

Fenneman, N.M. and Johnson, D.W., 1946, Physiographic divisions of the conterminous U. S: U.S. Geological Survey data release, https://doi.org/10.5066/P9B1S3K8.

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. This is a polygon coverage of Physiographic Divisions in the conterminous United States. It was automated from Fenneman's 1:7,000,000-scale map, "Physical Divisions of the United States," which is based on eight major 1946 divisions, 25 provinces, and 86 sections representing distinctive areas having common topography, rock types and structure, and geologic and geomorphic history.

Contacts

Attached Files

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

physio_shp.zip 440.74 KB application/zip
physio_cov.zip 311.08 KB application/zip
physio.gif thumbnail 4.94 KB image/gif

Purpose

The primary use of this data is for regional and national data display rather than specific local data analysis due to the small scale (1:7,000,000) of this coverage.
Illlustration of data set
Illlustration of data set

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/P9B1S3K8

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