Grand Castle Prospect

The Grand Castle Prospect is a silica mine located in Iron county, Utah at an elevation of 7,369 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

Name: Grand Castle Prospect

State:  Utah

County:  Iron

Elevation: 7,369 Feet (2,246 Meters)

Commodity: Silica

Lat, Long: 37.78917, -112.77417

Map: View on Google Maps

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.


Satelite image of the Grand Castle Prospect

Grand Castle Prospect MRDS details

Site Name

Primary: Grand Castle Prospect


Commodity

Primary: Silica


Location

State: Utah
County: Iron


Land Status

Land ownership: National Forest
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: Surface


Ownership

Owner Name: U.S. Forest Service


Production

Not available


Deposit

Record Type: Site
Operation Category: Past Producer
Operation Type: Unknown
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: High Plateaus Of Utah


Mineral Deposit Model

Not available


Orebody

Form: STRATABOUND


Structure

Type: R
Description: Hurricane Fault System


Alterations

Not available


Rocks

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

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


Analytical Data

Not available


Materials

Not available


Comments

Comment (Commodity): FINE BEDDED, EVEN-TEXTURED SANDSTONE

Comment (Location): SECTION SUBDIVISION: NW 1/4, NE 1/4, NW 1/4

Comment (Workings): THE ROCK HAS APPARENTLY BEEN MINED IN A LIMITED AREA OF THE OUTCROP. THE WORKINGS CONSIST OF A SMALL TIPPLE-LIKE STRUCTURE AND A SMALL EXCAVATED AREA. AT ONE TIME IT COULD HAVE PRODUCED A LIMITED AMOUNT OF SILICA MATERIAL USED IN THE SMELTING OF IRON ORE.


References

Reference (Deposit): WILBERG, D.E., 1979, UTAH GEOL. & MINERAL SURVEY, ON-SITE INVESTIGATIONS

Reference (Production): WILBERG, D.E., 1979.


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