Gold Mines For Sale

Plomosa Gold (PC 3)


The Plomosa Gold (PC) 3 claim consists of one (1) unpatented lode claims covering 20.66 acres on federal land managed by the U.S. Bureau of Land Management. It is within the Central Plomosa Mining District in La Paz County, Arizona which is known for gold, silver, copper and semi-precious gems.

The PC 3 claim contains surface mining operations with shallow trenches and drill pads. Records indicate that mining was active as early as 1958 as per Stanton B. Keith in the State of Arizona Bureau of Geology and Mineral Technology’s published “Index of Mining Properties in Yuma County, Arizona,” which documents mineral deposits and mining properties for the surrounding area.

Location and Access: From Quartzsite, Arizona take U.S. Interstate 10 East towards Phoenix for about 10.7 miles. Take exit 31 for US-60 East towards Wickenburg Prescott. After taking the exit and merging with US-60, drive for 3.6 miles and then turn left onto Perry Lane. From here on, the roads are quite reasonable, but an ATV may be required to reach the claims. Go 4.3 miles and then turn left. While keeping left, drive 0.47 miles and then turn left. Drive approximately 650 feet and arrive at the PC 3 claim. The southeast corner of the claim will be about 40-50 feet to the east.

GPS Coordinates: 33.722203N, 114.003128W (location monument of PC 3)

Mining and Exploration Potential: The PC 3 claim was a red altered hill top that had 4 distinct drill pads from previous drill projects, but no gem material was located. A sample of a hematite vein was collected from a drill pad cut to help identify what the drill project was targeting. This sample indicates alteration and could indicate potential gold, silver, or copper deposits. Suggestions for exploration 1) sample the veins in the workings; 2) soil sampling grid; and 3) explore and sample nearby workings that may be just off the claims – expand claim position as necessary.

The Plomosa District is located in La Paz County, Arizona near Bouse.

Placer gold was being actively mined by the late 1860’s in the Plomosa Mining District. Larger scale placer mining using drywashing machines began production in 1910’s with minor results and not being classified as commercial successes.

The first detailed mineral study of the area was by Bancroft in 1911. Several mines around Climax including the Tough Nut, Southern Cross, Jewell, and Mudersbach were all actively mined to varying success between 1900-1930. The Mudersbach was primarily a copper and lead mine with the Tough Nut, Southern Cross, and Jewell producing gold and silver along with copper.

Iron was produced from the Phoenix and Yuma mine groups that are located in the northwest of the Plomosa mining area in 1917. This Iron was from hematite veins within the fault complex.

The most recent mining activity in area took place in 1960 by the Loma Grande Mining Company who recovered low grade gold ore at the old Little Butte Mine. They used a cyanide leaching operation to extract gold from the ore.

A report from 1983 estimated that a total production for the mining district was 346,000 lbs of copper, 5,000 oz of gold, 25,000 lbs of lead, and 7,000 oz of silver.

In the 1980’s a drill and trenching project was carried out by Dan Patch on his claims near the Southern Cross Mine, Tough Nut Mine, and Climax Mine. A total of 3 rotary holes were drilled near the Southern Cross Mine and several cuts and trenches were dozed near the Climax Mine. This explorational project was focused on the porphyry copper mineralization in the area and was meant to assess precious metal resources of the area.

The Copperstone Gold Mine north of Quartzsite, Arizona and is relatively near the mining district shows promise of being large producing gold mine with historic production of gold at approximately 514,000 ounces from 1987 to 1993. After Kerr’s acquisition of Copperstone their assessment in 2018 of the project has added on at least an estimated 175,000 ounces of gold.

Regional Geology: The PC 3 claim is located within the Basin and Range Province of southwestern North America. The north to south trending high angle normal faults creates the north to south valley and mountain systems that dominate the Mountain West in the western United States. The older controlling feature in the Plomosa Mining District is the detachment faults first described in 1974. The detachment faults are related to Tertiary age continental tectonics that resulted in moving the upper section of crustal material 55km on the Buckskin-Rawhide fault and 40-50km on the Bullard detachment fault. This detachment fault has resulted in the exposure of lower gneissic material with high grade alteration. This exposure of altered material gives the Plomosa district its high concentration of mineral deposits. Strong mineralized zones in the district are related to various aged dike systems in the northern section of the Plomosa Mining District. Later Tertiary activity of volcanics along with zones of weakness from faulting activity allowed for hydrothermal emplacement of some of the major mineral deposits including the hematite veining in the northwest of the region. Epithermal gold-rich mineralization occurs in sheared and brecciated reactive rocks, this includes various carbonate deposits in the region. Limestone and marble deposits are located in the northwest of the mining district and are included in these reactive rocks.

Local Geology The claim is located in Tertiary Andesite breccia amid hills with surrounding poorly consolidated alluvium. Mineralization of the area is reported as narrow irregular stringers of chrysoprase in Tertiary volcanics.

Available Reports: Keith, Stanton B. (1978) State of Arizona Bureau of Geology and Mineral Technology, Geological Survey Branch Bull. 192, Index of Mining Properties in Yuma County, Arizona: 170 (Table 4). Phillips, K.A. (1987) Arizona Department of Mines and Mineral Resources, Arizona Industrial Minerals 2nd Edtn.: 159. Geological map of the Quartzite quadrangle, Yuma County, Arizona, U.S. Geological Survey, Open-File Report OF-68-180, Scale 1:48,000.