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Round Mountain Mine (Round Mountain Gold Mine; Sunnyside Mine; Sphinx glory hole; Great Western tunnel; Rattlesnake; Keane vein; Los Gazabo vein), Round Mountain, Round Mountain, Round Mountain District, Toquima Range, Nye Co., Nevada, USA

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Latitude & Longitude (WGS84): 38° 42' North , 117° 4' West
Latitude & Longitude (decimal): 38.7, -117.066666667

An open pit Au-Ag-As-Sb-Th-Hg-Mo-F-Mn-W mine located in secs. 19 & 30, T10N, R44E, MDM, 0.9 km (2,800 feet) SE of Round Mountain (summit) (coordinates of record), and 1.2 km (4,100 feet) S of Round Mountain (town). Owned by Homestake Mining Co. (25%) & Round Mountain Gold Corp.

Workings include an open pit with a heap-leach operation.

Produced 4 million tons ore (= 3,720 kg Au) (1984).

Mineral List

14 valid minerals.

Rock Types Recorded

Entries shown in red are rocks recorded for this region.

Note: this is a very new system on and data is currently VERY limited. Please bear with us while we work towards adding this information!

This page contains all mineral locality references listed on This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.


Mining Annual Review (1985): 326.

Minerals yearbook (1988) - Mining & Quarrying Trends: 31.

Wilson, W. E. (2009): The Round Mountain mine, Nye County, Nevada. Mineralogical Record: 40: 105-115.

Werschky, R. S. (2011). Kristallines Gold vom Round Mountain, Nevada, USA. Mineralien Welt. 22(4): 14-27.

Nevada Bureau of Mines and Geology Special Publication 31, Minerals of Nevada.

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