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Downieville mining district · California

Historic ground.
Remarkable gold.

Discover the Telegraph Gold Mine—an enduring chapter of Sierra County's mining heritage, with historic underground workings, substantial project records, and the remarkable 29-troy-ounce Telegraph Gold Nugget, on display at the Smithsonian Institution in Washington, D.C.

Discover the mine Explore the photographs
Photograph of the Telegraph Mine's 29-troy-ounce gold nugget, on display at the Smithsonian Institution in Washington, D.C.
On display · Smithsonian Institution · Washington, D.C.
29-Troy-Ounce Telegraph Gold Nugget
Telegraph LLC · Sierra County, CAScroll to explore ↓
Sierra CountyNorthern California
Downieville DistrictHistoric gold region
Underground MineHistoric workings & development
Telegraph LLCMine property owner
01 / Our story

A story carved into the Sierras.

Deep in California's northern Sierra Nevada lies a gold property shaped by more than a century and a half of mining exploration and discovery.

The Telegraph Mine is located in the historic Downieville mining district in Sierra County, California. Its record reaches across generations—from early mining activity to underground development and modern technical evaluation. A remarkable 29-troy-ounce gold nugget recovered from the Telegraph Mine is on display at the Smithsonian Institution in Washington, D.C.

Today, the property is held by Telegraph LLC. Lazarus Mining LLC, the majority owner of Telegraph LLC, serves as the point of contact for project, technical, and corporate inquiries.

Visit the Lazarus project profile
Forested Sierra Nevada valley and Fir Cap Mountain
A timber-framed mine portal with rail tracks
Sierra County · California
Photograph of the Telegraph Mine's 29-troy-ounce gold nugget, on display at the Smithsonian Institution in Washington, D.C.29-Troy-Ounce Telegraph Gold Nugget — On Display at the Smithsonian Institution, Washington, D.C.
02 / A remarkable find

Gold you can see.

29 troy ounces

The Telegraph Mine's remarkable 29-troy-ounce gold nugget is on display at the Smithsonian Institution in Washington, D.C.

Recovered from the Telegraph Mine in Sierra County, California, the nugget is a distinctive part of the property's mining history.

View the complete photo collection
03 / The Telegraph property

The mine, in focus.

An on-the-ground view of the site: the portals, surface facilities, underground passages, and the terrain surrounding the property.

Personnel in the underground workings01 / UndergroundInside the workings ↗ Equipment at the Telegraph mine portal02 / PortalThe mine entrance ↗ Aerial view of Telegraph site facilities03 / SiteAerial perspective ↗ Gold in a prospecting pan04 / GeologyGold-bearing gravels ↗ Snow-covered Telegraph Mine site05 / SeasonsThe site in winter ↗
04 / Technical perspective

Historic workings. Modern evaluation.

The Telegraph property has been the subject of exploration, historical-record evaluation, and technical reporting. The project's October 31, 2025 technical report describes the geology, mineralization, exploration programs, and existing mine infrastructure.

3.661 MozIndicated gold resource · Figure reported in the October 31, 2025 technical report
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01

Gold-bearing quartz systems

The property's mineralization includes auriferous quartz systems discussed in the technical report.

02

Historic placer channels

Gold-bearing Tertiary channel gravels form part of the Telegraph property's documented mining history.

03

Existing underground workings

Portal and underground photography documents part of the existing mine development and infrastructure.

04

Property-specific technical record

The October 2025 report provides the context for the project's reported technical information.

05

Controlled information access

Detailed project documents may be requested through Lazarus Mining and reviewed subject to applicable confidentiality requirements.

06 / Get in touch

Interested in the Telegraph Mine?

For project information, qualified technical inquiries, corporate matters, or documentation requests, contact Lazarus Mining LLC. Inquiries are administered by Lazarus Mining LLC through the project email address or its official inquiry form.