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Dorado Patented Gold Placer




Fully-Permitted Producing Placer Gold Mine, Northern California

Deeded land patented in 1882 and signed by Chester Alan Arthur, 21st President of the United States

Deeded water rights–1,500 miner inches since 1870 and filed 1895

Dorado-8 - Mining Claim for Sale

Summary of Placer Claim and Patented Property

The 38.52 Acre Oswald Patent

A permitted producing placer gold mining operation

In 1998 Dorado & Associates, Inc. purchased the Famous Oswald Patented Gold Mining Claim. They built an entire placer ore excavation and ore processing plant and laboratory complete with Face Plate Grinder, Ball-Mill, Wifely Lab Table, Lab Floatation testing equipment, Jaw Crusher, Assay Furnace and Glassware.

They then applied for and obtained the numerous regulatory mining and water permits necessary to legally operate a placer gold mining operation in Trinity County.

An expert geologist’s opinion states that the balance of this Oswald placer can produce approximately 99,000 yards, working ten month out of the year.

A 160 Acre BLM Placer Mining Claim, Administered by Forest Service, surrounds the Patented Gold Mine on three sides.

The property is within one mile of a Forest Service trailhead that leads into 500,00 acres of wilderness. The claim is downstream from the town of Dedrick. It took 8 years of work to get the property permitted.

Canyon creek, Located 20 miles from weaverville. No chemicals are used in the gold recovery processed. It’s water based placer mining technology has been approved and permitted by the U.S. forest service as being environmentally sound. Crystal clear trout streams and abundant wildlife, beautiful scenic views, along with a potential seven (7) digit income available from gold production.

Dorado-8 - Mining Claim for Sale

Fine tuned mining operation

Dorado-8 - Mining Claim for Sale

Abundant gold – heavy producer

198.52-acre opportunity includes:

A fully-permitted operational patented gold mine on gated 38.52 acres in the Trinity Alps complete with:

  • Heavy-mining equipment
  • Storage and operation buildings
  • Ore-processing plant
  • Fine-tuned gold recovery operation includes:
    • grizzly
    • conveyer belt
    • trommel
    • rotating cone
    • sluice box
  • 150 KW generator to run the gold recovery operation

Laboratory with:

  • Face plate grinder
  • Ball mill
  • Wifely Lab table
  • Lab flotation testing equipment
  • Jaw crusher
  • Assay furnace
  • Glassware

Property Includes:

  • All-weather roads
  • 2,000 square feet modern log cabin featuring 3 bedrooms and 2 1/2 baths
  • Large lake
  • Heliport
  • 42′ x 40′ two story new Ramada building designed to be converted into a beautiful home, but now housing two 35 foot RVs
  • Additional RV hookup with all facilities

The Big East Fork of Canyon Creek runs through the property and since 1895 the owner has retained water rights of 15,000 gallons per minute. Fee-simple 160-acres with a BLM mining claim borders the 38.52 acres on three sides, for a total of 198.52 acres.

A Beautiful 38.52 Acre Ranch Fully Developed for Year-Round Country & Vacation Living

Dorado-8 - Mining Claim for Sale

Large Lake near the cabins

Dorado-8 - Mining Claim for Sale

Landscaping surrounds dwellings

Dorado-8 - Mining Claim for Sale

A 36′ x 42′ two story Ramada with plumbing (easily converted to a residence)

Dorado-8 - Mining Claim for Sale

Two story modern log cabin with 3 Bedrooms and 2.5 Bathrooms

Dorado-8 - Mining Claim for Sale

Three 35′ well kept RVs

A new 2,000 +/- sq. ft. spacious two story modern log cabin, that features

  • 3 Bedrooms
  • 2.5 Baths
  • Large Porches
  • Patio
  • Electric Gas/Heating
  • Rose/Vegetable Garden
  • Orchard
  • Fresh flowing mountain stream water into house
  • Scenic forest and mountain views
  • Three (3) 35′ very nice RVs for guest and/or employees
  • A 36′ x 42′ two story Ramada with plumbing (easily converted to a residence)
  • Power lines – both electric and telephone
  • Two storage buildings – including one for laboratory equipment
  • Outdoor spa
  • Landscaping surrounding dwellings
  • Satellite TV
  • Scenic lake and mountain views
  • Numerous buildings sites for additional homes or cabins

Dorado-8 - Mining Claim for Sale

Plenty of housing

Awesome Mountain Views

Dorado-8 - Mining Claim for Sale
  • Gated 40 acres in Trinity Alps
  • Northern California Getaway home or vacation paradise, surrounded by 500,000 acres of wilderness
  • All weather roads and a private bridge
  • Water rights: Permitted for a 12′ waterline from the Big East Fork
  • 10,000 board feet of logs cut and down ready for saw milling

Dorado-8 - Mining Claim for Sale

Map of the property

Heavy Equipment Inventory

Dorado-8 - Mining Claim for Sale

Ford service truck, Excavator, Dozer, Ford 10-Yard Dump, Traxcavator and pickup truck

Model: 950 Traxcavator (Loader/with forks)

Year: 1966

SN#: 90A490

Hours: 500+1- since motor overhaul

Model: Cat EL 200B Excavator

Year: 1990

Pin#: 4SG06237-7X4102

Another SN: 00-7790

NS: S6KT Engine

Hours: 3,808

Model: Dozer D7E with Riper-Tilt Blade

Year: 1970

SN#: 48A-2077

Hours: 100+/- after engine overhaul

Model: Ford Dual Axle Service Truck

Year: 1984

VIN#: 1FDMF60H9EVA55593

GVWR: 16,500 pounds

Body Style: FA8

Miles: 24,946 Actual

Model: Ford F250 Pickup

Body Style: 3/4 Ton, Long Body, 4 x 4, Standard – Hydraulic Clutch

Year: 1994

VIN#: 2F1HF26H9RCA62092

Mileage: 75,495

Model: Nissan Pickup (Small Off-Road) Run About

Year: 1989

VIN#: 1N6NDI1SIKC368694

Miles: Runs Good

Model: Ford 10-Yard Dump Truck

Year: 1966

VIN#: 185LUA15296

Work Horse

One 16′ flat bed Hauler Trailer

One Dodge Pickup

3 Trailers (brand names):


Kuntry Aire

Air Stream

4″ Honda Dredge with Wetsuit

Dorado-8 - Mining Claim for Sale

Helicopter landing area


Dorado-8 - Mining Claim for Sale

Private gate 1.5 miles from Dorado’s private property

Dorado-8 - Mining Claim for Sale

Smooth road winds through beautiful forest

Dorado-8 - Mining Claim for Sale

Private bridge

Dorado-8 - Mining Claim for Sale

Private bridge overlooking beautiful clear mountain river

Dorado-8 - Mining Claim for Sale

Another view of the road, passing through a lush mountain valley

Overview of Current Mining Operation:

The Oswald placer is extensive and covers the remaining 60% of the 40 acres. Enough has been mined from different areas of the placer to tell that it all contains gold. The material is classified into three different stages which is absolutely essential to the recovery of the gold. The owners have been fortunate enough to find that all of the gold is free-flowing, and they don’t have to use any grinding equipment at all in the gold recovery process. The Oswald placer gold recovery operation has been fined tuned to recover 90 to 95% of the gold.

The placer material is picked up with a front end loader and dumped into a grizzly. The grizzly is an inclined plane with a set of rails that are 4 inches apart. The 4 inch rails are on a slope so the bedrocks roll off of it and everything that is smaller than 4 inches goes through the opening of the grizzly and into the belt feeder. Now the Grizzly is the first step in sorting the rocks according to size, also known as classifying the rocks. Classification is the secret to gold recovery. The rock must be classified by different sizes so that gold can be recovered with the right equipment for each of the classifications. The belt feeder then drops the material onto the conveyor belt, which slowly runs the material up to the trommel. Now the purpose of the belt feeder is to give the uniform feed which helps in the optimal recovery of the gold. After the feed goes up the conveyer belt and into the trommel, it is washed a separated again. The trommel is approximately 4 and half feet in diameter, and some 24 to 30 feet long. The trommel is essentially an open tube and the conveyor belt feeds the material into the opening of the trommel and as it drops in water is injected and it starts wetting the ore. The trommel rotates and as it rotates it brings the rocks up and they slide back and it washes them clean of all of the dirt and gold that is on them. The material continues down the trommel to a six foot screen on the back end. The screen is designed to allow any material that is smaller than a quarter inch to be washed again and fed into a rotating cone. The quarter inch minus material goes through the screen and that is where about 85% of the gold is found.

The reverse end of the trommel is where small particles run through the quarter inch screen into a hopper. The hopper feeds a rotating cone. The cone rotates at 120 RPM with ripples in it, and the ripples are such that they catch the gold as they are slung against the outside of the rotating cone. The cone has ripples that are about a half inch wide and the water goes inside the rotating cone and the excessive water floats all of the host rock off the side of the rotating cone and it goes off as waste rock. The other end of the trommel is open. The material that is smaller than 4 inches, but larger than 1/4 an inch goes out on the shaker screen, where the rocks that are smaller than 5/8 an inch fall down into a sluice box that catches gold in the riffles as waste rock is washed out. The riffles are cleaned each day after the days run and this is where the bigger gold is found.

The rock that is smaller than 4 inch, yet larger than 5/8 an inch goes onto a conveyor and is carried up and dumped and used for paving roads on the claim.

The 150 KW generator puts out 460 volts and runs all of the gold recovery equipment. It is a very economical piece of equipment to run. It’s really a bigger generator than is really needed, but it does an excellent job.

Overview of Trinity 1-8 Placer Claims:

The Trinity #1 through #8 is a 160 acre placer claim surrounded by 500 thousand acres of wilderness and also adjacent to and connected to the Oswald Property. The Oswald property is known to contain gold. It has been mined for some 7 years. On the Oswald Property the bottom 10 to 15 feet above the bedrock is where the heaviest gold is found, and that is where it really pays off to be a miner.

There are many indications that the Trinity one through eight will be just as successful as the Oswald Property. First off a general look at the area shows some outcrops near a flat area looking at area #5 beyond the Oswald. Those outcrops are similar to the outcrops on the Oswald property, near the cottage. The owners noted that these two outcrops are what they were mining when they found the gold.

The owners also surveyed a gully in area #2 and looked back towards the cottage and observed the same identical type of outcrop. They also traveled across the creek and down to area #4 and peered back into area #2, across the creek. They again noted the same outcrop that they had found to be productive in the Oswald patent. The next thing they did was to take a large test sample from area #2. They used the excavator to dig 25 to 30 feet deep and then ran it through their gold recovery system. They recovered enough gold that we felt like any prudent man would mine the area. They also did a similar test in area #1 with the same results.

In addition to testing the two areas the owners also noted around the area some other things that are significant. Number one, the Scarlet Ray Mine, located almost a stone throw from area #2 is one of the heaviest producers of the whole area. The miners were mining the same type of outcrop as were seen in these two areas. In addition to that Canyon Creek has an inside curve for both placer claim # 4 and placer claim # 2, which is where you will find the heavy gold – on the inside of the curve. Those areas should provide some of the heaviest gold of anywhere. Claim #3 is adjacent to the Oswald mine. This is advantageous because there are direct roads down to the Oswald flat and the gold can be taken directly down to the flat to be processed. Area #4 has been sparsely mined and in fact the owner has pictures of this area in which some of the large nuggets would reach clear across a dollar bill sideways.

The placer claims are in a canyon that is surrounded by mountains on either side. The mountains contain mines. The ore from those mines was hauled to Dedrick, which is an old mining town just above the placer claims and that is where the gold was processed. Also the area where the claims have been staked is of similar type of erosion. The erosion took place a long time ago, about the same time as the quartz veins were being laid down from all of the magma that was being cooled down there and placed the gold there. When it eroded and finally was weathered it washed down and the old riffles in the bedrock caused it to laid down, then later mud slides came around and they deposited all of the outcrops that are see on top of the gold. So, within ten feet of the bedrock that is where the good gold is found. The Trinity #1 through #8 and the Oswald Placer are located in the middle of one of the best gold mining districts in Northern California. It is anticipated that the Trinity #1 through #8 will be one of the heaviest producing areas in Trinity County which historically is a great, great prospect for finding gold. The Trinity #1 through #8 is a claim. The owner has worked eight years getting the placer claims permitted, and just recently the forest service hired an independent outside engineering firm to do an environmental impact study (EIS). The EIS was carried out and approved. The placer claims are ready to be worked and so is the Oswald, which includes all of the equipment needed to process 200 to 200+ yards per day.

Description of Area:


Dedrick, the old mining town directly north of the Oswald property was settled on Corral Bar in 1890, and named after Chloride Mine locator Dan C. Dedrick. The post office was established May 4, 1891. By 1902 the town boasted a school, 2 stores, 2 hotels, a restaurant, lodging house, livery, assay house, 3 saloons and many homes. 200 men were employed in the mines in the area including Buck’s Ranch, Ralston, Annie, Maple, Mason-Thayer, Chloride-Bailey and the Globe. The Globe assayed at $750 per ton or an incredible 39.6 ounces per ton on Sept. 20, 1890. The Globe and the Chloride used tramline buckets to bring ore to the two mills on Canyon Creek. The 40 stamp Globe mill was 20 stories tall. Mining activity slowed by the mid-1920’s and Dedrick faded. The post office closed December 31, 1941.


Historic Weaverville, California is located 20 miles the the south of the Oswald property. Weaverville is a rural community nestled at the base of the magnificent Trinity Alps Wilderness area. The town was founded in 1850, and was once home to approximately 2,000 Chinese gold miners. A lot of history lives in Weaverville, and the downtown area still proudly displays the old west heritage. Historical places, beautiful scenery, great outdoor adventure, a friendly small town atmosphere and much more await you here. The Trinity Alps Wilderness has lots of outdoor terrain to keep you busy. The Trinity Alps Wilderness is part of the Shasta-Trinity National Forest which is the largest in California with a diverse landscape ranging from 1,000 to 14,162 feet in elevation. The 2.1 million acre forest encompasses five wilderness areas, hundreds of mountain lakes and 6,278 miles of streams and rivers for lots of outdoor fun and adventure.

With so much outdoor wilderness to offer, it’s no wonder why Trinity County is the most visited recreational area in California.


Summer weather is usually hot and dry with lower elevation temperatures ranging from 85° – 100°+F and lows from 60° – 70°. Fall days are usually mild and warm, with cool nights. Winter is when most of the precipitation falls, averaging over 55 inches per year, much of it in the form of snow in the high elevations. Highs range from 40° – 60° and lows from 30° – 40° in the lower elevations. Spring weather is variable with many pleasant days.

Dorado-8 - Mining Claim for Sale

The town of Weaverville

Canyon Creek Mining District History:

Canyon Creek-East Fork District The Dedrick-Canyon Creek and Helena-East Fork districts, in Trinity County, constitute a single mining district whose center is approximately 12 miles northwest of Weaverville. The East Fork mines achieved their greatest output in the early 1900’s when gold prices ranged from $18.98 to $21.32 per ounce. Three of the mines: the Enterprise, Golden Crest, and North Star, have recorded productions of more than $100,000 each; the Alaska mine produced more than $600,000. The Globe mine, on the slope and ridge east of Canyon Creek, is estimated to have produced more than $700,000. In addition there are several small mines and prospects whose production is unknown or less than $100,000. With those numbers estimated production in ounces for the 5 largest mines in the district was 81,508 ounces of gold (using the average price of gold between 1900 and 1930, which was $19.63 per ounce). Using the current gold price of $1,300 per ounce, total output from these 5 mines would have equaled 105,960,265 in todays money. That doesn’t include production from the other lesser mines in the district.


Mines and prospects of the Canyon Creek-East Fork district are in rocks of the central metamorphic belt, here composed exclusively of the Salmon Hornblende Schist A granitic body of moderate size, the Canyon Creek pluton (Davis and others, 1965), intrudes the hornblende schist north of the Canyon Creek district, and other smaller granitic bodies occur in the southeastern and southwestern parts of the district. The geology of the district is not well known, and there are no apparent geologic reasons for localization of mineralization in this area. Little could be learned from the brief field examination of the region. Several of the old mines were difficult to locate, and some could not be found. Apparently all were near quartz veins that contained free gold accompanied by pyrite, some of which at least was gold bearing. Felsic dikes, including quartz porphyry and granitic rocks are associated with several of the deposits.


Geological Survey (U.S.), Hotz, P. E (1969). Geology of lode gold districts in the Klamath Mountains, California and Oregon.

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