Image: Butte Cross Section
Size of this preview: 800 × 479 pixels. Other resolutions: 320 × 192 pixels | 1,014 × 607 pixels.
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Description: Butte Cross Section
Title: Butte Cross Section
Credit: USGS Bulletin 1857-E, Gold in Porphyry Copper Systems, Gold in the Butte District, Montana
Author: Edwin W. Tooker
Usage Terms: Public domain
License: Public domain
Attribution Required?: No
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