California · Lassen County

Crystal Hill Deposits

Unconfirmed Gemstone Mixed Underground / Surface

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Key facts

State: California
County: Lassen
Development status: Past Producer
Mine type: Mixed underground / surface
Primary commodity: Gemstone
Verification: Unconfirmed

Mine Location

Approximate Area

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Documented underground workings

Mindat locality description

A former gemstone mine located in secs. 18 & 19, T23N, R18E, MDM, 6.5 km (4.0 miles) S of Red Rock on the western flank of Peterson Mountain. Also located in sec. 19. Take US highway 395 N from Hallelujah Junction 7.5,then E on dirt road 1.6 miles. MRD…

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View individual source records (2)

Every underlying record used to build the summary above, for research/verification use.

Derived from MRDS oper_type (existing operation): Surface-Underground

MRDS oper_type documents existing underground operation (dev_stat=Past Producer): Surface-Underground · oper_type

Verification

Unconfirmed

Source records support underground workings, but UndergroundMines has not yet independently verified this mine.

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Why it's listed

Source records document both underground and surface mining.

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History & operations

Historical record

Development status: Past Producer

Commodities & minerals

Gemstone · primary

Reported minerals

Amethyst
Quartz
Smoky Quartz

Access & recent conditions

Land: unknown

Community reports

No community field reports yet.

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Sources & evidence

USGS Mineral Resources Data System

Type: Historical mine record

Supports:

mine identity
development status
commodities
underground eligibility evidence

Mindat

Type: Mineralogical locality database

Record: Mindat Locality: 81008