Image: Shafter Presidio Mine Cross Section
Shafter_Presidio_Mine_Cross_Section.png (562 × 294 pixels, file size: 53 KB, MIME type: image/png)
Description: Shafter Presidio Mine Cross Section
Title: Shafter Presidio Mine Cross Section
Credit: Geology and Ore Deposits of the Shafter Mining District, Presidio County, Texas, USGS Bulletin 928-B
Author: Clyde P. Ross
Usage Terms: Public domain
License: Public domain
Attribution Required?: No
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