Tonopah Gold Project


The Tonopah property consists of 444 unpatented mineral claims, totaling 8,762 acres, that are located in the Ralston Valley, on the northeast side of the San Antonio Mountains in the Walker Lane structural trend of west-central Nevada, approximately 30 kilometers northeast of the town of Tonopah and 50 kilometer southeast of Round Mountain.  

The project is 100% controlled by Viva. A 2% Net Smelter Return Royalty (NSR) with a 1% NSR buyout option exists on 185 of the unpatented lode mining claims that cover the core of the known mineralization. 


Geology and Mineralization

The Tonopah property contains a low-sulfidation epithermal gold system with near vertical quartz-adularia-gold veins hosted by the Palmetto Formation and the overlying Tertiary rhyolitic volcanics. These veins developed in a large dilatational break in the regional Rye Patch- Walker Lane fault systems. In addition, a discontinuity has been identified in drilling at the top of the Palmetto formation, where tertiary volcaniclastics and ashfall tuffs disconformably overlay the argillite. Significant alteration and mineralization is localized within a low-angle zone which includes and often parallels the erosion surface of the Palmetto, as well as several facies in the tertiary volcanics, particularly where veins and mineralized structures intersect this contact zone.  With the exception of a single outcrop, the gold-bearing altered and mineralized zones of the Tonopah deposit are masked by alluvium, playas and sand dunes. 

Analysis of gold mineralization demonstrates a bi-modal population of high grade mineralization associated with  high angle structures and a lower grade population of mineralization associated with the argillite/volcanic contact zone. Geologically similar deposits in Nevada include the nearby large-scale Round Mountain mine.  


The image to right shows the structural zones of mineralization identified in the Tonopah project area

Tonopah Gold Resource


  • 2,500 Tonnes (x1,000)
  • 1.32 Gold Grade g/t
  • 112,000 Contained Ounces


  • 6,300 Tonnes (x1,000)
  • 0.62 Gold Grade g/t
  • 141,000 Contained Ounces

Measured and Indicated

  • 8,800 Tonnes (x1,000)
  • 0.89 Gold Grade g/t
  • 253,000 Contained Ounces

*Mineral Resource Announced May 21st, 2019


  • 6,000 Tonnes (x1,000)
  • 0.54 Gold Grade g/t
  • 123,000 Contained Ounces


 Plan view of the $1,250 pit shell. A pit slope of 42 degrees was utilized.

Project Infrastructure

The Tonopah Project is currently an exploration/evaluation stage project. The site has excellent logistics and access for exploration, being a short drive from the town of Tonopah, Nevada, with good road access, communications, and access to contractors and labor. Las Vegas, a city of 2 million people with significant construction and manufacturing infrastructure, is located 340 kilometers southeast of the project via US Highway 95. There are major Komatsu and Caterpillar dealers and supply depots located in Las Vegas, as well as Cat and Komatsu parts depots and mining-specific machine shops in Round Mountain, approximately 50 kilometers north of the project. Power and water is available, although water rights will need to be acquired. 

Environmental and Permitting

Viva has the permits and authorizations necessary to conduct mineral exploration activities on both public and private land. Authorizations  include:

  • Decision Record (DR) and Findings of No Significant Impact (FONSI) issued by the United States for a Plan of Operations to disturb up to 75 acres during exploration.  
  • Department of the Interior Bureau of Land Management (BLM) Casefile NVN-076629, and Reclamation Permit 0210 issued by the Nevada Division of Environmental Protection (NDEP) Bureau of Mining Regulation and Reclamation (BMRR).

Studies by a prior operator on the project were undertaken to support a potential small-scale  underground mining operations. The studies identified and evaluated baseline hydrogeologic conditions, groundwater quality, storm water controls, mine dewatering requirements, ore and waste rock geochemistry, and surplus  water management options including re-infiltration and underground injection.  Geochemical testing of waste rock that would be encountered in potential underground decline development reported a low or no potential for acid rock drainage.


Work Plan

Viva believes that the Tonopah deposit has the potential to contain over 1.0 million ounces of gold mineralization. It's current work plan is designed to demonstrate that potential.  

  • Complete an updated resource estimate to include 26 drill in-fill and step-out drillholes completed in 2018 and early 2019.
  • Complete approximately 4,000 to 5,000 meters of additional drilling  to further upgrade inferred mineralization to indicated and to further expand both structural and contact related mineralization toward the Company's 1.0 million ounce target for the Tonopah project.
  • Conduct additional leach and gravity recovery testwork to better define a metallurgical process route for the project. 
  • Initiate long-lead baseline environmental and water quality monitoring to support further exploration and development efforts.

The proposed work plan, including completion of the resource estimate, drilling, metallurgical test work and initial environmental field work, is expected to cost $1.5 million