Price: $12,000

Bryan Extension Mining Claim

A Gold Rush Expeditions, Inc. Mining Claim Property

Federally Registered Mining Claim ID:CAMC0313098

20 Acre Lode Claim — Chuckwalla District — Riverside County, California

Mining Claim Introduction

The Bryan Extension mining claim is, as its name infers, an assumed extension of the gold deposits located on the Bryan patented Mineral property, just to the south of the Bryan Extension. The patented Bryan, it should be noted, has no documented production since its inception.

California Division of Mines surveyed the site and referred to the Bryan Extension mines as “the mine with no name”, however, they also sampled the site and reported: “Of the 61 samples taken in area VII, 11 contained detectable gold and 5 contained detectable silver. The average gold and silver values were 1.217 oz/ton and 0.5 oz/ton, respectively.”

The mine site is remote, three miles past the Corn Springs Oasis (spring) and there is little to no traffic in the region. It is hot, arid and devoid of any resources such as Water, Shade, or general shelter.

The Mine has been developed on both sides of a small wash by a series of open cuts into quartz bodies. A single adit and connected shaft (winze) on the south side of the wash is cut into competent rock and while not overly impressive from the outside (gated) bears an estimated 60,000 tons of waste dump not accounting for what has been taken away in the wash below. Surveyors estimate the workings are of at least 1600’ but likely more. On the north side of the wash, a well developed inclined shaft extends at least 50’ on a slight angle. This mine bears a dump of not less than 20k tons and is estimated to be at least 1000’ of linear workings.

Samples taken from the site show gold in quartz, with some possible platinum. Historic assays report gold and silver but never assayed for platinum.

These mines are estimated to be 100-120 years old based on Gold Rush Expeditions, Inc. Surveyors professional opinion. It is estimated that the mines were likely last worked prior to 1942, it appears that most of the track has been stripped from the site and the majority of the implements looted. This likely happened in the WWII effort to collect scrap steel and iron for recycling.

Rough, but clear roads allow access to the mines with short wheel base vehicles, full size or long wheel base vehicles may encounter technical difficulties in accessing the mine camp.

The mines have been gated by the local BLM offices and will require a Notice of Operation to be accessed. This should be a minimal effort and require very little in the way of bonds or guarantees.

Mining Claim Quick Facts


Good 4WD access with some technical spots.

Waste Dump Present/Size?

Estimated 80,000 tons

Tailings Present/Size?

No tailings noted

Mine Cut/Structure

Directly cut into competent rock

Total Workings

Estimate 2600'+

Nearest City with Amenities

Blythe, California


Minimal parking on claim



Other Items of Note

Near the corn springs Oasis site and camping

Acres and Type of Claim
20 Acre Lode Claim
Purchase Price

Mining Claim Description

The Bryan Extension Mineral Property is a twenty (20) acre lode Mining Claim located in the Chuckwalla Mining District (sometimes referred to as the Pacific Mining District). The district area is tucked between two Wilderness study areas but has easy access between the two via established county roads.

The Historic Corn Springs Oasis is located just below the mines. The springs were home to many prospectors during the early days of mining in the region and were said to have produced placer gold, likely washed down from the mines in the general vicinity.

The Bryan Extension as it sits on the south side of a small wash is often referred to as the Bryan Mine. It in fact has a USGS identifier noting it as the Bryan Mine. However, this is incorrect, as the Bryan Mine proper is a patented property about 1/3 of a mile south of the Bryan Extension. There are no interconnected workings or defined veins or ore bodies that link the two. The Bryan extension on the north side of the wash has been referred to as the Happy Jack Group. There is no other history on the Happy Jack group so it cannot be determined if this assessment is correct. For ease of reading we will refer to the two mine locations as the north and south Bryan Extension.

The North and the South Bryan Extension are two distinct mines that were operated independently. This is evidenced by the layout of the camps and the method of development.

The North Bryan is developed by a nearly vertical shaft of undefined depth. A waste dump of not less than 20k tons is a testament to the depth of the workings. There is no doubt extensive development in drifts where likely thousands of tons of muck and gob have been stashed and conceal the true size of the workings.

There is evidence of a small head frame that existed over the now gated shaft. It is a small footprint, indicating there was no need for large machines as is needed with a longer pull. For this reason, the surveyors would assert that the shaft is likely no deeper than 50’. The remaining development is through drifts and stope work. Ores would have been worked, filled cars and then those cars would have been pushed to the shaft, where they could be attached to whatever mechanism lifted them out.

This assessment is reached because of the development of the mine above ground. There are a series of flats that step down the side of the wash. These would have contained miners houses, workshops, assay offices, a mine boss house, outhouses and other necessities. There are at least six (6) well defined flats on the north side with rock stacked around the edges noting borderlines. This is not something that is seen with a small mining operation. It indicates there were likely 6-10 men working at the site at any given time. It also indicates there was significant production to warrant the building of structures and development of the region.

The ores on the north side show similar to those on the south side of the wash. That being oxidized iron staining and massing on crushed quartz bodies. In some of the quartz samples, there is flake gold, copper staining and what surveyors believed to be platinum. It is common on small platinum deposits for platinum to be burned off while assaying for gold and silver. USGS reports as late as 1994 report fire assays on ores of the area were conducted looking solely for gold and silver deposits.

On the south side of the wash, the workings on the surface appear to be more impressive and developed that those of the north side. It is likely that the north side was developed far ahead of the south side. The south side appears to have been a remote operation, that being, that the miners did not live onsite at the mines, but rather commuted, likely from Corn Springs, to the mines on a daily basis.

There is an old (1900-1920s) steam compressor in the wash which appears to have come from the south side of the wash. This would indicate power was used at the site, either for water for drills, air inside the mine, or power for winches and pulleys. This is an excellent indicator of the level of development of the mine. Small mines, especially those with adit access points will rarely have substantial power in the form of steam compressors. Ore cars can easily be pushed in and out on flat surfaces and air will flow up to 500’ into open workings. Given this information, one can safely assert that the workings on the south-side are quite substantial and likely far more developed than those on the north side.

Neither of the workings on the north or the south side were accessed or mapped due to gating on the portals. A notice of operation must be filed with the local BLM office to allow access into the workings.

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