The Sleeper deposit is located on the western foothills of the Sleeper range, in NW Nevada. It consists of an epithermal Au-Ag vein system controlled by an extension-related system of NW, NS and bed-parallel structures affecting stratified rocks.

Bed parallel structures related to the base of the rhyolite porphyry and the contact also act as control for Lower grade, disseminated mineralization.

NW structures act as discontinuities for the main N-S veins, as well as hosts for lower grade mineralization.

Four main types of gold mineralization are found within the Sleeper deposit and may represent a continuum as the system evolved from a high level, high sulphidation system dominated by intrusion related fluids and volatiles to a low sulphidation meteoric water dominant system (Corbett, 2005, Utterback, 2005, Histed, 2005). In this setting the paragenetic relationships of the differing mineralization styles are as follows:
* Early - quartz-pyrite-marcasite stockwork
* Intermediate - medium-grade, silica-pyrite marcasite cemented breccias localized on zones of structural weakness
* Late - high-grade, banded, quartz-adularia-electrum-(sericite) veins
* Post - alluvial gold-silver deposits in Pliocene gravels.

The Sleeper Gold Property is located in Desert Valley and the adjoining Slumbering Hills, Awakening Mining District, Humboldt County, Nevada, U.S.A. The Sleeper Project represents an opportunity as a mine that might be put back in to operation in the current gold price environment.

On March 26, 1986 AMAX poured its first gold bar from the Sleeper Gold Property The Sleeper operation was designed to treat oxide mineralization by both milling and heap leaching. There was no flotation circuit in the mill to recover gold bearing sulphides. The early pit mill feed was oxide material, but zones of sulphide mineralization were present in the pit. Reported gold production from the mill was 1,219,880 ounces and 438,609 ounces from heap leaching. Silver production totaled approximately 2.3 million ounces. The mine ceased production in 1996.

The Sleeper gold-silver deposit represents a project with a great deal of potential for being an important gold producer in Nevada once again.

Existing infrastructure at the Sleeper mine site will require upgrades for the projected large mine configuration, however, the basic components remain in place. The site is currently connected to the regional electrical grid, although substantial capacity upgrade would be required. Gravel road access, connecting the Sleeper mine site to paved, all weather Highways 140 and 95 is in place.

According to 2017 PEA The mining operation was assumed to employ conventiona ........

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