File:USGS Bulletin787 Plate16 FigureA Maud S. vein at old shaft of Maud S. Mine.jpg
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![File:USGS Bulletin787 Plate16 FigureA Maud S. vein at old shaft of Maud S. Mine.jpg](https://upload.wikimedia.org/wikipedia/commons/thumb/6/6f/USGS_Bulletin787_Plate16_FigureA_Maud_S._vein_at_old_shaft_of_Maud_S._Mine.jpg/800px-USGS_Bulletin787_Plate16_FigureA_Maud_S._vein_at_old_shaft_of_Maud_S._Mine.jpg?20191214032837)
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