Little Erma Mine

The Little Erma Mine is a mine located in Emery county, Utah at an elevation of 5,459 feet.

About the MRDS Data:

All mine locations were obtained from the USGS Mineral Resources Data System. The locations and other information in this database have not been verified for accuracy. It should be assumed that all mines are on private property.

Mine Info

Satelite View

MRDS mine locations are often very general, and in some cases are incorrect. Some mine remains have been covered or removed by modern industrial activity or by development of things like housing. The satellite view offers a quick glimpse as to whether the MRDS location corresponds to visible mine remains.

Site Name

Primary: Little Erma Mine

Commodity

Tertiary: Copper
Tertiary: Cobalt

Location

State: Utah
County: Emery
District: San Rafael District

Land Status

Land ownership: BLM Administrative Area
Note: the land ownership field only identifies whether the area the mine is in is generally on public lands like Forest Service or BLM land, or if it is in an area that is generally private property. It does not definitively identify property status, nor does it indicate claim status or whether an area is open to prospecting. Always respect private property.

Holdings

Not available

Workings

Type: Underground

Ownership

Owner Name: Donald Hanni, Green River

Production

Not available

Deposit

Record Type: Site
Operation Category: Past Producer
Deposit Type: Replacement
Operation Type: Unknown
Discovery Year: 1955
Discovery Method: Ore-Mineral In Place
Years of Production:
Organization:
Significant: N
Deposit Size: S

Physiography

General Physiographic Area: Intermontane Plateaus
Physiographic Province: Colorado Plateaus
Physiographic Section: Canyon Lands

Mineral Deposit Model

Not available

Orebody

Form: LENTICULAR, SCATTERED PODS

Structure

Type: R
Description: Se Flank Of San Rafael Swell

Alterations

Alteration Type: L
Alteration Text: Slight Bleaching

Rocks

Name: Siltstone
Role: Host
Age Type: Host Rock
Age Young: Late Triassic

Name: Siltstone
Role: Host
Age Type: Host Rock Unit
Age Young: Late Triassic

Analytical Data

Not available

Materials

Ore: Uraninite
Ore: Malachite
Ore: Chrysocolla
Gangue: Jarosite

Comments

Comment (Location): SECTION SUBDIVISION: NE1/4, NE1/4, NW 1/4, SEC 24

Comment (Geology): SANDSTONE LENSES ARE THICK TO MASSIVE, LENTICULAR AND CLIFF FORMING

Comment (Reserve-Resource): MINERALIZATION AND LOGS EXPOSED IN WORKINGS

Comment (Commodity): RADIOACTIVE PETRIFIED AND COALY WOOD, DESSIMINATED CARBON TRASH AND URANINITE

Comment (Development): SCATTERED DRILL HOLES IN AREA

Comment (Deposit): MINERALIZATION OCCURS AT BASE OF CHANNEL SANDSTONES INTERMITTENTLY ALONG OUTCROP LENGTH.

Comment (Workings): 7 ADITS ARE PRESENT. TWO INTERCONNECT ADITS WITH 850 FEET OF WORKINGS; THE REMAINDER AVERAGING 50 FT.

Comment (Deposit): Discovery Year: 1950'S

References

Reference (Reserve-Resource): DOELLING, H. H. 1977

Reference (Deposit): HAWLEY, C. C., AND OTHERS, 1968, GEOLOGY, ALTERED ROCKS OF THE SAN RAFAEL SWELL, EMERY COUNTY, UTAH, USGS BULL. 1239

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