File:NAMrad Th let.gif

This is a file from the Wikimedia Commons. Information from its description page there is shown below.
Commons is a freely licensed media file repository. You can help.

Summary

Description	English: Map of Thorium Concentrations (most of USA and some of Canada) from USGS Open-File Report 2005-1413
Date	2005
Source	http://pubs.usgs.gov/of/2005/1413/NAMrad_Th_let.gif via http://pubs.usgs.gov/of/2005/1413/maps.htm
Author	usgs.gov

Licensing

	This work is in the public domain in the United States because it is a work prepared by an officer or employee of the United States Government as part of that person’s official duties under the terms of Title 17, Chapter 1, Section 105 of the US Code. See Copyright. Note: This only applies to original works of the Federal Government and not to the work of any individual U.S. state, territory, commonwealth, county, municipality, or any other subdivision. This template also does not apply to postage stamp designs published by the United States Postal Service since 1978. (See 206.02(b) of Compendium II: Copyright Office Practices). It also does not apply to certain US coins; see The US Mint Terms of Use.
This file has been identified as being free of known restrictions under copyright law, including all related and neighboring rights.

File usage

The following pages on Schools Wikipedia link to this image (list may be incomplete):

Thorium

Metadata

This file contains additional information, probably added from the digital camera or scanner used to create or digitize it. If the file has been modified from its original state, some details may not fully reflect the modified file.

GIF file comment	Original image source: http://pubs.usgs.gov/of/2005/1413/maps.htm Modified with GIMP

About Schools Wikipedia

Through Schools Wikipedia, SOS Children has brought learning to children around the world. More than 2 million people benefit from the global charity work of SOS Children, and our work in 133 countries around the world is vital to ensuring a better future for vulnerable children. Go to http://www.soschildrensvillages.org.uk/sponsor-a-child to sponsor a child.