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File:Geologic Map of the Grand Canyon 30 x 60.jpg

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Geologic_Map_of_the_Grand_Canyon_30_x_60.jpg (580 × 420 pixels, file size: 91 KB, MIME type: image/jpeg)

Summary

Description
English: This map, compiled from previously published and unpublished data as well as new mapping by the author, represents the general distribution of bedrock and surficial deposits in the map area. Together with the accompanying pamphlet, it provides current information on the geologic structure and stratigraphy of the Grand Canyon area. The database delineates map units that are identified by general age and lithology following the stratigraphic nomenclature of the U.S. Geological Survey. The scale of the source maps limits the spatial resolution (scale) of the database to 1:100,000 or smaller.
Date
Source Geologic Map of the Grand Canyon 30' x 60' Quadrangle, Coconino and Mohave Counties, Northwestern Arizona
Author George H. Billingsley; U.S. Geological Survey

Licensing

Public domain
This image is in the public domain in the United States because it only contains materials that originally came from the United States Geological Survey, an agency of the United States Department of the Interior. For more information, see the official USGS copyright policy.

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7 May 2007

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Date/TimeThumbnailDimensionsUserComment
current04:19, 24 June 2013Thumbnail for version as of 04:19, 24 June 2013580 × 420 (91 KB)Steve Quinn{{Information |Description ={{en|1=This map, compiled from previously published and unpublished data as well as new mapping by the author, represents the general distribution of bedrock and surficial deposits in the map area. Together with the accom...

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