• Data Access
  • Your Email  
  • Your Email  
Keep me signed in.
Forgot your password?
Close
  • Forgot Your Password?
  • Enter the email you signed up with and we'll email it to you.
  • Your Email  
Close
Back
MDO
Mining Data Solutions
  • Home
  • Database
  • Subscribe
  • Sign In
  • Sign In
United States
Mountain Pass Mine

This page is not tailored to
devices with screen width under 750 px.
 Location:
85 Km SW from Las Vegas, California, United States

  Address:
6720 Via Austi Parkway Suite 450
Las Vegas
Nevada, United States
89119
Phone  ...  Subscription required
EmailEmail
WebsiteWeb
Additional Resources for Suppliers & Investors
Drill results over 30 g/t Au
Stay on top of recent discoveries.
Search drill results by commodity and grade.
Largest mines in the Americas
Mining and mill throughput capaciites.
Full profiles of select mines and projects.
Deepest underground mines
Shaft depth and mill throughput data.
Full profiles of select mines and projects.
Heavy mobile equipment
HME type, model, size and quantity.
Full profiles of select mines and projects.
Permitting and construction projects
Projects at the permitting or construction stage. Full profiles of select projects.
Mines with remote camps
Camp size, mine location and contacts.
Full profiles of select mines and projects.
Mines & projects in United States
A list of country's mines and projects.
Full profiles of select mines and projects.
  • Overview
  • Owners
  • Geology
  • Mining
  • Processing
  • Production
  • Reserves
  • Costs & Financials
  • Fleet
  • Personnel
  • Filings & News

Thank you for browsing through mine profiles compiled by the Mining Data Online team.

Would you like to subcribe or schedule a Demo?
  • Name:
     
  • Company:
     
  • Position:
     
  • Phone:
  • Email:
  • Message:

Overview

StageProduction
Mine TypeOpen Pit
Commodities
  • REE
Mining Method
  • Truck & Shovel / Loader
Production Start...
Mine Life35 years (as of Jan 1, 2021)
Continued focus on completing light rare earth element (LREE) separations by year-end
– Targeted completion in late 2022;
– Expect run-rate NdPr production in 2023.

Addition of Heavy Rare Earth Separation into Stage II
– Department of Defense award of $35M to support construction of facility;
– Critical to complete the restoration of full rare earth supply chain to U.S.
– Heavies used in magnets for consumer and defense applications;
– Designed to accept third-party feed to expand both LREE and heavy rare earth element (HREE) output.


Owners

Source: p. 28
CompanyInterestOwnership
MP Materials Corp. (operator) 100 % Indirect
MP Materials Corp. owns and operates the Mountain Pass Rare Earth Mine and Processing Facility.

Contractors

Subscription required - Subscription is required.


Deposit Type

  • Carbonatite hosted


Summary:

Mountain Pass is a carbonatite hosted rare earth deposit (USGS Deposit Model 10; Singer, 1986). The mineralization is hosted principally in carbonatite igneous rock. Mountain Pass is the only known example of a rare earth deposit in which bastnaesite is mined as the primary magmatic economic mineral in the world (Haxel, 2004).

Mineralization occurs entirely within the carbonatitic portion of the currently drilled geologic sections, although grade distribution internal to this mineralized zone is variable. Higher grade zones (>10% TREO) tend to occur in lenses parallel to the hangingwall/footwall contacts, both downdip and along strike. Continuity of mineralization internal to the carbonatite zone is well defined both along strike and downdip. The currently defined zone of rare earth mineralization exhibits a strike length of approximately 2,750 ft (850 m) in a north-northwest direction and extends for approximately 3,000 ft (930 m) downdip from surface. The true thickness of the >2.0% TREO zone ranges between 15 to 250 ft (5 to 75 m).

Globally, carbonatites are subdivided into two main groups: apatite-magnetite bearing, mined for iron and/or phosphorus ± various by-products, and rare-earth bearing carbonatites. Many other commodities may be present in economically significant concentrations, such as uranium, thorium, titanium, copper, vermiculite, zirconium, niobium, and phosphorus (Singer, 1986). The majority of carbonatite complexes display a series of ........


Mining Methods

  • Truck & Shovel / Loader


Summary:

The Mountain Pass deposit is mined by open pit mining methods. Surface mining operations include:
• Drilling and blasting to remove overburden material;
• Loading and haulage;
• General maintenance and services.

The open pit that forms the basis of the mineral reserves and the LoM production schedule is approximately 3,100 ft from east to west and 3,800 ft from north to south with a maximum depth of 1,400 ft. Total mining is estimated at 216 million st comprised of 30.4 million st of ore and 186 million st of waste, resulting in a strip ratio of 6.1 (waste to ore). Ore grade averages 6.35% TREO yielding over 2.05 million dry st of recoverable 60%TREO concentrate. SRK designed four pit pushbacks that adhere to proper minimum mining widths. Bench sinking rates are approximated to no more than six benches per year per pushback.

Slope design constraints assume a 15 ft model block height. Mining production will be conducted primarily on 30 ft bench heights. Most areas of the mine are in competent rock mass, and it is envisioned that in these areas the mining in the final wall will be finished to a 30 ft face or a 60 ft face height. Using a multiple-bench final wall configuration permits a steeper IRA in competent ground. The maximum inter-ramp slope height (bench stackheight) is 500 ft. A geotechnical berm, or haul ramp, with a minimum width of 65 ft is required between bench stacks.

The minimum catch bench width is developed using ........


Crushing and Grinding
Source: Subscription required

- subscription is required.


Processing

Flow Sheet: Subscription required

Summary:

- subscription is required.


Production:

CommodityProductUnits2021202020192018
REE Oxide t  ......  Subscription required  ......  Subscription required  ......  Subscription required13,914
Total Rare Earth Oxides Concentrate kt  ......  Subscription required  ......  Subscription required
Subscription required - Subscription is required.

Operational Metrics:

Metrics202120192018
Daily processing capacity  ......  Subscription required
Total tonnes mined  ......  Subscription required9,642,323 tons9,477,454 tons
Ore tonnes mined  ......  Subscription required598,683 tons564,228 tons
Tonnes milled  ......  Subscription required542,668 t342,891 t
Subscription required - Subscription is required.

Reserves at December 31, 2021:
Reserves stated as contained within an economically mineable open pit design stated above a 2.49% TREO Cut-off grade (COG).

CategoryTonnage CommodityGradeRecoverable Metal
Proven 0.05 M tons Total Rare Earth Oxides 9.45 % 0.01 M tons
Probable 30.08 M tons Total Rare Earth Oxides 6.33 % 2.02 M tons
Proven & Probable 30.13 M tons Total Rare Earth Oxides 6.34 % 2.02 M tons
Indicated 1.43 M tons Total Rare Earth Oxides 2.83 %
Inferred 9.08 M tons Total Rare Earth Oxides 5.1 %

Commodity Production Costs:

CommodityUnits202120202019
Cash costs (sold) Total Rare Earth Oxides USD  ......  Subscription required  ......  Subscription required  ......  Subscription required
Subscription required - Subscription is required.

Financials:

Units2021202020192018
Revenue M USD  ......  Subscription required  ......  Subscription required  ......  Subscription required 67.4  
Operating Income M USD  ......  Subscription required  ......  Subscription required  ......  Subscription required -8.9  
Pre-tax Income M USD  ......  Subscription required  ......  Subscription required  ......  Subscription required -13.5  
After-tax Income M USD  ......  Subscription required  ......  Subscription required  ......  Subscription required -13.5  
Subscription required - Subscription is required



Heavy Mobile Equipment as of December 31, 2021:
HME TypeModelSizeQuantity
Dozer (crawler) ....................... Subscription required 405 HP ....................... Subscription required
Dozer (rubber tire) ....................... Subscription required 150 HP ....................... Subscription required
Drill jumbo (two boom) ....................... Subscription required 306 HP ....................... Subscription required
Grader ....................... Subscription required 218 HP ....................... Subscription required
Load-Haul-Dump (LHD) ....................... Subscription required 8.4 cu. yd ....................... Subscription required
Load-Haul-Dump (LHD) ....................... Subscription required 17 cu. yd ....................... Subscription required
Load-Haul-Dump (LHD) ....................... Subscription required 425 HP ....................... Subscription required
Personnel Carrier ....................... Subscription required
Truck (fuel / lube) ....................... Subscription required
Truck (haul) ....................... Subscription required ....................... Subscription required
Truck (haul) ....................... Subscription required 75 tons ....................... Subscription required
Truck (haul) ....................... Subscription required 102 tons ....................... Subscription required
Truck (water) ....................... Subscription required 8000 gallons ....................... Subscription required
Subscription required - Subscription is required.

Mine Management:

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Mar 28, 2022
....................... Subscription required ....................... Subscription required Subscription required Mar 28, 2022
....................... Subscription required ....................... Subscription required Subscription required Mar 28, 2022
....................... Subscription required ....................... Subscription required Subscription required Mar 28, 2022
Subscription required - Subscription is required.

Staff:

EmployeesYear
Subscription required 2021
Subscription required 2020

Corporate Filings & Presentations:

DocumentYear
Corporate Presentation 2022
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2020
................................... Subscription required 2020
................................... Subscription required 2020
................................... Subscription required 2020
Subscription required - Subscription is required.

Subscription required - Subscription is required.

Terms of Use Privacy Policy © 2017-2023 MDO Data Online Inc.