Historic C.O.D Gold Mine and Camp Overview
20 Acre Lode Claim – Wallapai District – Mohave County, Arizona
Gold Rush Expeditions, Inc. is proud to present the Historic C.O.D. Gold Mining Claim. This is a 20 acre lode mining claim for sale exclusively through Gold Rush Expeditions, Inc. The claim is located just outside of Kingman, Arizona and has been properly staked and marked at all corners. All Gold Rush Expeditions, Inc. claims have been meticulously surveyed, mapped and researched. Field work is completed by our own experienced, well versed Mine Survey Team.
This is not a mine for a small prospector or weekend miner. This is a large, productive mine that reported $400,000,000.00 in documented reserves when gold was less than $425 and silver was $8 an ounce. A conservative estimate in today’s values would be over $1,200,000,000.00 ($1.2 Billion). The mine workings are accessed by a 900′ shaft that is marked by multiple drift levels with a full assay report on the levels. This mine will need some permitting and work to operate again. With that in mind, there is over $1 Billion in reserves to be worked.
The COD Massive gold mine that operated commercially from before 1900 into the early 1990s. The Mine is a series of levels on a 900’ shaft with a steel headframe. An adit is referenced but has been reclaimed and will need to be dug out. The mine was noted as operated for Gold, Copper and other ancillary minerals. Mine outbuildings include a miners shower/clean off building, an old mill, a newer mill with steel frame. There are shaker tables still in the old buildings. This should be noted as a very one of a kind claim. The COD operated from turn of the century to late this century. Millions of dollars were turned out of the mine. Historical reports noted several million in gold and silver reserves. The majority of the workings are underground and underground access will be required to work the high grade ores. There are thousands of tons of unprocessed waste rock above the mill, waiting for processing. These ores show gold, quartz and silver. The concentrate tailings are also several hundred tons and much has washed down the canyon.
A 2004 Report on the mine stated the following:
COD Mine includes in Kingman AZ… COD was discovered and worked since the 1880’s and last operated in the 1980’s. The mine has some 1.2 M tons of a proven, probable and possible resources exceeding $400M USD of in ground resources at today’s prices from the old reports.
These resources are attributed from a single vein system from only the COD mine, as there are 7 additional known productive veins and 3 additional producing mines. There is also additionally an estimated 40,000 tons of above ground tailings resources
The COD mine has a 600 ft deep shaft and some 1700 ft of tunnels. Included is an extensive channeled chip sampling with assays and extensive maps from the previous operator.
The COD mine is a gold-silver mine with significant lead and zinc grades. The gold grade ranges from 5 to 7 grams per ton and the silver grade ranges from 8 to18 ounces per ton. The lead and zinc grades are approximately 3%. The previous estimation of $400M USD is based upon 9 previous NON-COMPLIANT NI. 43-101 geological studies and speaks only to the ore blocks encountered in the underground workings from the past producer in the 1980’s. The underground workings could be significantly expanded.
History of the Mines
From a 1909 report,
The C.O.D. mine is about 2 1/2 miles north of Stockton Hill, in the upper or gulch part of C. 0. D. Wash, at about 4,900 feet elevation. It is easily reached by a good wagon road. The mine was located about 1878 and was worked in a desultory manner until 1885, when active work was begun on the property. About 4,000 tons of ore was produced in the next seven years. Activities were renewed about 1900, with an output of several hundred tons of concentrates. In 1902 machinery and a mill were installed, immediately after which the mine and mill were operated for a period of six months, when, owing to decline in the market value of silver and, it is said, mismanagement and lack of proper machinery, the plant was closed. Later the Fletcher Mining Company leased the mine under bond and worked it for a short time, shipping the ore to Needles, but is said to have soon stopped operations for want of funds. The mine was closed again November 19, 1904, and operations have not yet been resumed.
From a more recent report,
Schrader (1909) reported that 3,687 tons of ore were shipped to the smelter between 1885 and 1892. These shipments were reported to have contained 402,000 ounces of silver (Ag), 1,180 ounces of gold (Au), and 515,670 pounds of lead (Pb). This would give a grade of 109 oz/ton Ag, 0.32 oz/ton Au and 7% Pb. Additionally Schrader reported that between 1900 and 1902 330 tons of ore were shipped to the smelter, and that this ore contained 17,550 ounces of silver, 180 ounces of gold and 114, 360 pounds of lead. This would be the equivalent of a grade of 53.0 oz/ton Ag, 0.545 oz/ton Au and 17% Pb/ton.
The earliest reported mill at the C.O.D. Mine was in 1902. It was a 50 ton per day concentrating mill which operated for 6 months. The Economics Branch of the U.S. Bureau of Mines (Hale, 1963) reported production from the C.O.D. Mine from 1901 to 1948 to be 1,550 ounces of gold, 151,263 ounces of silver, 23,924 pounds of copper, 348,872 pounds of lead and 23,188 pounds of zinc. Construction of a new gravity mill was completed in 1982. All operations were suspended in 1985. The mine was put on a standby mode and the shaft was kept de-watered until 1990.
The most recent operations at the C.O.D. Mine were from 1979 until 1985. Operations at the C.O.D. Mine were suspended in January 1985 again as a result of the depressed metal prices. From 1985 through 1991, the mine was kept in a standby position with the shaft being kept dewatered and surface facilities being maintained on a minimal basis.
The C.O.D. Mine was originally located about 1878, but it remained inactive for approximately seven years (Schrader, 1909). Schrader reported that the mine had been developed by a shaft to the 400-foot Level (120 m) below surface, and contained two main and two sub-level workings (drifts). The total amount of underground workings to 1909 was 2,500 feet (760 m). The original shaft is located 400 feet (120 m) east of the current main shaft as represented by the present headframe (Plate 2). The 300-foot Level (91 m) of the old shaft was reported to have been stoped to surface for approximately 400 feet (120 m) on either side of the original shaft. Beyond the stoping to the east it was reported (1909) that good ore was still in place. It was also reported that the 300-Level drift was extended to the west for 900 feet (274 m). A second shaft (now the main shaft), apparently also being developed at the time, was reported to be at a depth of 96 feet (29 m). By 1921 the current shaft was reported to be at 440 feet (134 m) below surface, and the 440 foot-Level had been extended to the west approximately 490 feet (149 m). It was extended a further 375 feet (114 m) to the west. In 1969 the property was leased to Vernon Taylor of Kingman Silver Mines, Inc., and was extensively explored through to 1971. During this time the Main (new) shaft was repaired and deepened to the 640-foot (195 m) Level. The following is a table of work carried out during that time: In 1979 Mr. Charles Porter acquired a sub-lease from Kingman Silver. This was shortly thereafter assigned to Newbery Resources, Inc. Very little work was carried out underground. Newbery was acquired by Alanco Environmental Resources Corporation from its parent Newbery Energy Corp., giving Alanco the rights to the property
From that time until December of 1985 the mine was de-watered to below the 560-foot (171 m) depth and the main shaft was completely rehabilitated to the 550-foot (168 m) Level. This work included a new shaft collar, timbering, new headframe and hoist (Plate 2), all new track in the shaft and drifts, compressed air, fresh air, powerline, communication system, and waterline being installed. The work stations on the 400-foot and 500-foot levels were completely redone and new ore blocks were established. Two major stopes and one small stope, with ore shoots, were developed on the 500-foot Level. Production by Alanco in 1984 was approximately 2,600 tons of ore from a sub-level stope on the 400-foot Level and a stope from the 500-foot Level. Alanco reported the average grade of the ore to be 1.0092 oz/ton Au and 13.51 oz/ton silver. Geological mapping was carried out on the 500-foot Level, both east and west of the main shaft. Reconnaissance mapping was conducted on the surface. This is the only mapping carried out on the mine.
In late 1990 and early 1991 a considerable amount of damage to the shaft occurred from several heavy rain storms in the area. No further de-watering could be carried out and access to the mine was unavailable. As of 1994 the water level in the mine was at the 130 foot (40 m) depth. A small amount of use was being made of the gravity mill by a lessee since that time. Some vandalism has been carried out on the surface facilities by the time US-Canadian acquired the project in 2004.
The history of the COD is well documented.
The crusher and separator area.
The new hoist in place and ready for operation.
Shaker Tables installed in the new mill.
Historic maps show the drift levels of the mine and the assay values throughout the workings.
Geological map of the claim area.
Side view of the COD Mine with valuations.
|Access to the Mine||You can drive directly to the adit and shaft on the claim.|
|Tailings Present||50,000 + tons. Lots of unprocessed waste rock on the site that is staged and was awaiting milling when the operations ceased at this mine. Lots of gold, pyrite, galena, copper and quartz seen in the waste pile.|
|Entrance||The mines have been reclaimed so it is hard to tell exactly what the entrances are. The shaft was timbered before it was gated.|
|Mine Cut||Adit and shaft|
|Depth / Length||Documented as 3000′|
|Minerals in the Mine||Gold, pyrite, galena, copper, quartz allover the claim.|
|Foot Traffic in the Mine||None|
This mine is a monster. It should be patented with the amount of workings and values that have been reported. The surface improvements alone, including the two mills, miner’s quarters. Separating equipment, headframe are valued at over $800,000 in 1980s values. Underground improvements are documented but inaccessible due to water. This should be able to be pumped out with minimal cost today. There is substantial gold found and visible in the milling ores. Processing the old tailings will likely net a good profit alone. This will be an expensive beast to get running but could produce millions of dollars in profits each year once its running.
Aerial view of claim and boundaries.
|Number of Mines||1 shaft and 1 adit seen. Another adit is on the claim but not seen right off.|
|Nearest city with amenities||Kingman Arizona about 12 miles away.|
|Access to the Claim||The last 3 miles of the road require a high clearance 4WD vehicle to access. Some boulder crossings that surveyor will want to exercise
extreme caution while crossing.
|Parking and Staging on the claim||Ample parking and staging on the claim. This was a major mine operation.|
|Structures on claim||Steel headframe, 2 mill remains (1 is a newer steel building), Cinder-block house remains. Building that was most likely the office?|
|Relics on the claim||Shaker tables, Rail, tons of various mine related items, pipe|
- Mineral Deposits of the Cerbat Range, Black Mountains, and Grand Wash Cliffs
- COD Mine Overview Reserves
Rail running down into the mine.
A partially collapsed adit.
Foundations for winches at the headframe.
Remains of a gate at the adit entrance.
Headframe at the COD
Full zoom down the shaft.
Gold, in appreciable quantities.
The massive old headframe.
Gold, quartz and likely some lead.
Another foundation on the claim.
Overview of the upper claim site.
Walk out windows.
At the top of the workings as a storm rolls in.
Another old foundation.
Look over the valley.
Tailings at the mill.
Gold in dark silver and lead ore.
Gold in quartz.
Water is hard on the old roads.
Mountains of tailings.
Native gold in matrix.
Lower tailings on the claim.
Tailings persevere as the wood rots away.
The old mill and foundations.
Sad kittens in the waste dumps.
View over the mill.
Tailings and new mill building.
Wash below the new mill building
Entire claim is accessible with full size truck.
Again, the beautiful headframe.
Hopper in the headframe.
View from the headframe.
Valley and claim overlook.
Foundations behind the headframe.
Solid building construction.
Some sort of processing area.
Appears to have burned.
Interesting burn pattern.
Lead and silver ore.
Gold in matrix quartz.
Gold, silver and lead.
Gold fleck running through the ore.
View from the lower parking area.
Gold and some pyrites in quartz.
Close up of some crazy ore matrix.
Washout below the headframe.
Excellent road access.
Rail strewn among the waste dump.
More old remnants of the mill.
The mill again.
Foundations inside the mill.
Inside the mill.
Storm pushing up the mountain.
Newer mill building.
Maybe for roller doors.
Shaker tables inside the mill.
Shown in scale for size.
Floor of the mill.
Footings for an unknown purpose.
Side of one of the shakers.
Someone left the front garage door open.
View up the valley to the old mine.
Greater than 2600 feet of workings estimated. This assessment based on what surveyors observed while on site.
Accessibility and Location
High Clearance 4WD
Free milling gold, gold nuggets or gems
Weather data from nearby city – Kingman, Arizona
USGS information on the mine(s)
Disclaimer: This MRDS information is provided for reference only and does not represent the actual mine or the current state or mineral content or value. It should not be perceived as accurate or definitive. MRDS information should not be relied on as decision data, the MRDS system has not been updated in over 20 years. The US Bureau of Mines, who was responsible for mining site assessment was disbanded in 1994. USGS and MRDS information has not been updated in over 66 years.
|Owner||C. O. D. Alanco, Ltd.|
|Owner||Mrs. Nelle Clack (Estate) And Partners|
- Gold – Primary
- Silver – Primary
- Lead – Primary
- Copper – Secondary
- Zinc – Secondary
|Materials||Type of material|
Comments on the geologic information
MINERALIZATION ASSOCIATED WITH PORPHYRY INTRUSION, LCRET.
Comments on the location information
INFO FROM LAND.ST :(1992)
Comments on the workings information
INCLINED SHAFT WITH DRIFTS AND STOPES, TWO OTHER SHORTER SHAFTS 375 AND 60 FT. MINED BY SHRINKAGE STOPE.
Comments on development
CONSISTS OF 8 UNPATENTED CLAIMS; PREVIOUS OWNERS AND OPERATORS INCLUDE FLETCHER MINING CO (1902), TAGGART MERCANTILE AND MINING CO, H.S. MULCAY, GERRY HAYNES, C.O.D. MINES, INC, C.O.D. MINING CO (1911), J.J. PERT (1926), J.J. PEARL (1927), JOHN OSTERMAN (1940), R.P.M. DAVIS, KINGMAN SILVER MINING CO (1970), MRS. CLACK (1970)
The vein system is well-defined, with little extension into the wallrock. Cross-fracturing and faulting strike along the schistosity of the area, producing considerable brecciation and the formation of high-grade ore shoots into the wallrock. The C.O.D. mineralization is a mesothermal polymetallic vein system associated with but on the outer edge of a porphyry copper molybdenum mineralizing system whose core is recognized as the Mercator/ Mineral Park porphyry copper-molybdenum deposit. At C.O.D. gangue minerals are quartz, with minor calcite, siderite and other carbonate minerals. Ore minerals include gold, silver, pyrite (FeS2), arsenopyrite (FeAsS), chalcopyrite (CuFeS2), galena (PbS), bornite (C5FeS4), covellite (CuS), chalcocite (Cu2S), anglesite (PbSO4), sphalerite (ZnS), argentite (Ag2S), cerussite (PbCO3) and smithsonite (ZnCO3). This mineralization is both hypogene and supergene, with supergene activity producing sporadic oxide zones above the 400-foot Level.
|Subject category||Comment text|
|Deposit||THE VEIN CUTS THE PROPHYRITIC GRANITE AND BASALT DIKES, BOTH OF WHICH ARE ASSOCIATED WITH CHLORITE SCHISTS.|
Mineral occurrence model information
|USGS model code||22c|
|Deposit model name||Polymetallic veins|
|Mark3 model number||46|
Host and associated rocks
|Host or associated||Associated|
|Rock type||Volcanic Rock (Aphanitic) > Mafic Volcanic Rock > Basalt|
|Host or associated||Associated|
|Rock type||Plutonic Rock > Granitoid > Granite|
|Rock unit name||Ithaca Peak Granite|
|Rock description||Ithaca Peak Granite|
|Host or associated||Host|
|Rock type||Metamorphic Rock > Schist|
|Host or associated||Host|
|Rock type||Metamorphic Rock > Gneiss|
|Local||Jointing And Schistosity Trends N 20 W, 90 ; With Secondary Joints: N 70 W, 80 S, Associated With The Ore Vein.|
|Regional||Prec Schistosity N30e, Lcret Veins, Fissures, Dikes Nw To Nnw Regionally|
Ore body information
The vein is well known as the “C.O.D. Vein”. It strikes N. 85° W. And dips about 80° N., and is reported to be more than a mile in length and about 6 feet in average width. The gangue is mainly quartz, in which the ore occurs in shoots, and lenses which vary from1 to 7 feet in width and are mostly of considerable extent. The narrow shoots are said to be usually rich, and the wider ones contain large bodies of milling and concentrating ore. At the 250-foot level the ore shoot are reported to vary from 3 to 7 feet in width and its ore was averaged about $250 to the ton, back in1909 dollars. The ore contains principally silver sulphide and gold, with some galena, zinc blend, and below the 250 foot level a Iittle chalcopyrite. It is said to be less rich in the sulphide zone in the lower part of the mine than in the oxide zone near the surface. Its run of mine, roughly computed from a record of the output from October 10, 1885, to March 6, 190 I, and is about as follows: Silver 160 ounces and gold 2 ounces to the ton; lead 12 to 20 per cent. This information is a direct quote from Geological Report completed by F.C. Schrader, 1909
|General form||LENSES AND SHOOTS|
|Strike||N 85 W|
Controls for ore emplacement
Fissures And Dikes
Economic information about the deposit and operations
|Development status||Past Producer|
|Year of first production||1885|
|Year of last production||1974|
|Production years||1901 – 1948|
|Period||1901 – 1948|
|Description||Cp_Grade: ^2 Toz Au/Ton|
|Period||1901 – 1948|
|Description||Cp_Grade: ^160 Toz Ag/Ton|
Reserves and resources
|Total resources||1,000mt ore|
Workings at the site
|Type of workings||Underground|
USGS Database – 10027771
Mining District Overview
Wallapai District Information
Many of the mines were discovered between 1863 and 1900 by prospectors in quest of the silver and gold which occurred in the oxidized parts of the fissure veins, the silver commonly in very rich concentrations. Cerargyrite, argentite, galena, and some gold were the principal ore minerals recovered in the early days. Improvement in transportation facilities and milling methods led to the subsequent production of base-metal ores. At first, lead with a low silver content was mined, but later the production of zinc and lead exceeded in value that of all other metals in the district.
The value of the metals produced during the years 1904-48 totals about $22,500,000. The value prior to 1904 is not known, but it probably amounted to at least five million dollars, for much highgrade silver ore, and to a less extent gold ore, is reported to have been mined in the early days.
Zinc-lead production reached its peak in the years 1915-17, which coincided with large-scale production from the Tennessee and Golconda mines under the stimulus of high metal prices.
At the time the present investigation was being carried on in the district (early 1943), the Tennessee mine was producing and milling about 150 tons of crude ore per day averaging 7 percent zinc, 3.5 percent lead, and 17 to 25 ounces of silver per ton. A disastrous fire destroyed the Golconda mill in October 1917. Since then the Golconda has produced only intermittently and on a small scale, and the mine is now largely inaccessible on account of caving and the encroachment of water.
The rocks exposed at the surface comprise pre-Cambrian crystalline rocks chiefly of granitic composition, cut by large intrusions of Mesozoic (?) granite (the Ithaca Peak granite), especially one mass near the center of the area, and pre-Cambrian granite (Chloride granite) in the northern part of the area. Dikes of many rock types, probably related genetically to the Mesozoic (?) granite, are scattered throughout the area. Some are alined parallel to the prominent northwestward-trending system of fractures and veins, but others trend in different directions. Remnants of volcanic rocks of probable Tertiary and Quaternary age are found around the margins of the Cerbat Mountains but are not present in the mapped area.
The ore deposits are conveniently separated into three types. The first is represented by the vein deposits of the district, the second by a quartz-sulfide stockwork deposit, and the third by the Emerald Isle copper deposit. The vein deposits are overwhelmingly the most important in the district. The quartz-sulfide stockwork deposit contains some low-grade copper and molybdenum. The Emerald Isle copper deposit is quite different from all other deposits in the district and consists of a fissure vein and mineralized area of chrysocolla chiefly confined to alluvium.
|Noted Commodities||Gold, Silver, Zinc, Lead|