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2. California Mother Lode - Wikipedia

   en.wikipedia.org/wiki/Mother_lode

   Individual gold deposits within the Mother Lode are gold-bearing quartz veins up to 15 metres (49 ft) thick and a few thousand feet long. The California Mother Lode was one of the most productive gold-producing districts in the United States. Now it is known as a destination for tourism and for its vineyards. [5]

3. Empire Mine State Historic Park - Wikipedia

   en.wikipedia.org/wiki/Empire_Mine_State_Historic...

   Gold ore deposits reside in the quartz veins, ranging from 3 to 7 ounces per ton. The Empire Vein outcrops to the east on a north–south strike, dipping at a 35-degree angle to the west. The vein was mined with inclined shafts following dip, with horizontal shafts (drifts) every 300–400 ft (90–120 m) along strike. The ore was mined by stoping.

4. North Star Mine and Powerhouse - Wikipedia

   en.wikipedia.org/wiki/North_Star_Mine_and_Powerhouse

   Gold on quartz, North Star Mine North Star sheeted veinlets, polished slab of granodiorite showing sheeted zone of carbonate veinlets. The North Star vein has an east and west course, with a dip of about twenty-three degrees to the north. This mine was opened by an incline shaft sunk on the course of the vein to a depth of nearly 700 feet (210 m).

5. Monte Cristo Gold Mine - Wikipedia

   en.wikipedia.org/wiki/Monte_Cristo_Gold_Mine

   Coordinates: 34°21′11″N 118°05′20″W. The Monte Cristo Gold Mine (Spanish for Mountain of Christ Gold Mine) is a gold mine in the San Gabriel Mountains near Los Angeles, California, USA. The Monte Cristo Gold Mine is part of the quest for mineral wealth in the San Gabriels. Many of the older tunnels and shafts are closed, and the 100 ...

6. Gold in California - Wikipedia

   en.wikipedia.org/wiki/Gold_in_California

   Gold in California. Three gold nuggets from Tuolumne County, California, similar to what the early miners would have found. Gold became highly concentrated in California, United States as the result of global forces operating over hundreds of millions of years. Volcanoes, tectonic plates and erosion all combined to concentrate billions of ...

7. Gold Hill (Nevada County, California) - Wikipedia

   en.wikipedia.org/wiki/Gold_Hill_(Nevada_County...

   Gold Hill (Nevada County, California) Gold Hill in Grass Valley, California, was the site of one of the first discoveries of quartz gold [2] in California. While quartz gold was also found in other areas of Nevada County, California during the same time, it is this find near Wolf Creek that led to quartz-mining frenzy and subsequent creation of ...