Image: North Star Mine Map
Size of this preview: 800 × 517 pixels. Other resolutions: 320 × 207 pixels | 946 × 611 pixels.
Original image (946 × 611 pixels, file size: 214 KB, MIME type: image/jpeg)
Description: North Star Mine Map
Title: North Star Mine Map
Credit: The Gold Quartz Veins of Grass Valley, California, Professional Paper 194, USGS
Author: Johnston, W.D.
Usage Terms: Public domain
License: Public domain
Attribution Required?: No
Image usage
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