Revision History for U.S. Geological Survey Open-File Report 2010-1259

By B.D. Smith, J.D. Abraham, J.C. Cannia, B.J. Minsley, M. Deszcz-Pan, and L.B. Ball

Helicopter Electromagnetic and Magnetic Geophysical Survey Data, Portions of the North Platte and South Platte Natural Resources Districts, Western Nebraska, May 2009

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Posted online December 10, 2010

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Revised and reposted May 15, 2017

The data files from the North Platte survey (NPlatteHEM_2008.xyz,NPlatteHEM_2009.xyz) were missing and         have been added to DEPTHSEC directory. 
The data files were in GEOSOFT database format (.gdb) and have been replaces with standard ASCII
	format (.XYZ) as described in the metadata file wnehem_InvertedResistivity.txt

The file wnehem_inversion_databases.zip was modified to contain the following data files:

NPlatteHEM_2008.xyz
NPlatteHEM_2009.xyz
SPlatteHEM_2008.xyz
sPlatteHEM_2009.xyz