LIBERTY Lithium Project


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Liberty Lithium Project

Custer County, South Dakota, USA


The Liberty Lithium Project is located in an historically significant Li Be producing area and covers nearly 40 square kilometers near Custer, South Dakota.

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The Liberty Lithium project is well served by interstate highways 385 and 16A with an airport central to the claim area.  Expertise and equipment are available as other operating pegmatite mines are in the area.

The company holds a large land position in an historic lithium-beryllium producing area near Custer, South Dakota. The Company has staked over 500 unpatented lode claims covering more than 15 square miles (nearly 40 square kilometers) in the west and southwest parts of the Black Hills.

The project hosts numerous pegmatite bodies, many of which were mined for Li-Be during World War II. United Lithium’s claims include or are immediately adjacent to (if the property is privately owned) all of the Li-Be producing properties  from this era. A reconnaissance rock chip sampling program was recently carried out in conjunction with the staking program to identify new areas for detailed field work, samples of which have been submitted to the laboratory and assays are awaited.

While the site is located near the Mount Rushmore and Crazy Horse National Monuments, United Lithium purposely avoided staking in these culturally and historically significant heritage and tourist locations, which we believe to be inappropriate for future mining.  The property lies more than 10 miles (16 kms) from these monuments, close to several operating pegmatite quarries that produce feldspar, mica and quartz for the market. Lithium mining at the Liberty project would be identical to these operations, with spodumene as an additional valuable production mineral.

Liberty Lithium Project Lode Claims (red), Custer County, South Dakota, USA. Click to view larger image


Historic Lithium Pegmatite Mining in the Black Hills

The earliest recorded exploration in the Black Hills was an expedition led by General George A. Custer in 1874. The first pegmatite mining was in 1879 for sheet mica about 3 miles (5 kms) northwest of Custer. During World War II the Black Hills were an important source of lithium minerals, mica, feldspar and beryl with production peaking during 1943 and 1944. The total value of pegmatite minerals produced from 1941 to 1958 in the Black Hills is recorded at approximately US$ 400 million in 2021 dollars. This production is large in comparison to most other US pegmatite districts of the time since individual mines were modest in size and operated by relatively simple techniques.

Notable Li and Be production during the 1940s came from the Helen Beryl mine, (spodumene, beryl, microcline-perthite, and columbite-tantalite), the Tip Top mine (spodumene and rare phosphate minerals), and the Tin Mountain mine (spodumene, pollucite, with minor amounts of beryl, columbite-tantalite, microlite, mica, and quartz). Spectacular spodumene crystals to 16 ft (5 m) in length are not uncommon in the intermediate zones at the Tin Mountain mine including one that was 42 feet long and weighed 90 tons.1

Gigantic crystals of Spodumene (1904) For size comparison, note the mine worker in center of right side of photo. Etta Mines — Black Hills, Pennington County, South Dakota. Plate i-B in U.S. Geological Survey. Bulletin 610. 1916. Click to view larger image

The Custer and Keystone areas in the Black Hills of South Dakota produced significant amounts of lithium in the 1940s and 1950s. Records indicate nearly 200,000 tonnes of lithium was mined and recovered from the Black Hills during this time.  Open-pit methods predominated in the area, and although underground mines exist they are rarely more than 200 feet (70 m) deep.

  1. Source: Tween Tribune, an educator’s support website of the Smithsonian Institution, the world’s largest museum, education, and research complex).


United Lithium is planning an integrated exploration program to evaluate the Custer area land holdings. The program will include local area detailed geologic mapping and additional rock chip sampling. With anomalies well-defined, targets with be drilled once permits and contracts are in place.

All claims still require final approvals from the Bureau of Land Management.

“The Liberty Lithium Project was generated using the knowledge of our team, allowing us to stake open ground with historic lithium production on and adjacent to our claims. Most historic mining occurred from the 1870’s to the 1950’s without modern production or exploration methods. We are excited at the opportunity to do systematic exploration using modern techniques. We expect that our consolidation of claims in the Liberty Lithium Project will lead to meaningful discoveries of spodumene that may support the growing demand for lithium to supply the North American battery and Electric Vehicle markets.”

- Michael Dehn, President & CEO, United Lithium Corp.


Mark Saxon (FAusMM), Technical Advisor to the Company, is a qualified person as defined by National Instrument 43-101 (Standards of Disclosure or Mineral Projects) and has prepared or reviewed the scientific and technical information in this press release.









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