| Deposit ID | 10118462 |
|---|---|
| MAS/MILS ID | 0080650254 |
| Record type | Site |
| Current site name | Black Cloud Millseq# 0080650123 |
| Alternate or previous names | Leadville Unit Mill |
| Point of reference | Plant |
|---|---|
| Geographic coordinates: | -106.21591, 39.22559 (WGS84) |
| Elevation | 3414 |
| Location accuracy | 10(meters) |
Political divisions (FIPS codes)
Lake(county)
Colorado(state)
United States(country)
North America(continent)
Land(continent)
USGS map quadrangles
Mount Sherman(quadrangle 1:24,000 scale)
Leadville(quadrangle 1:100,000 scale)
Leadville(quadrangle 1:250,000 scale)
Hydrologic units (watersheds)
Arkansas Headwaters(hydrologic unit)
Upper Arkansas(hydrologic accounting unit)
Upper Arkansas(hydrologic subregion)
Arkansas-White-Red(hydrologic region)
| Country | State | County |
|---|---|---|
| United States | Colorado | Lake |
| Commodity | Importance |
|---|---|
| Gold | Secondary |
| Lead | Primary |
| Zinc Critical | Primary |
| Plant (1) | -106.21591, 39.22559 |
|---|
| Operation type | Underground |
|---|---|
| Development status | Plant |
| Commodity type | Metallic |
| Significant | No |
| Mining method | Open Stope - Room and Pillar |
| Plant type | Beneficiation (Mill) |
| Plant subcategory | Flotation |
| Milling method | Flotation |
| District name | Leadville District |
|---|
| Ownership category | BLM Administrative Area |
|---|
| Type | Operator |
|---|---|
| Owner | Asarco (American Smelting And Refining Co.) |
| ID | 500516 |
| Interest | 8 |
| Year | 1977 |
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| U.S. Bureau of Mines | Minerals Availability System | MAS | 0080650254 | |
| Mine Safety and Health Administration | MSHA | MSHA | 0500516 |
REVISED BY MILS 5/79
THE MINING RECORD, VOL 107, #45, NOV., 6, 1996, P3.
PAYDIRT, FEB, 1997, #692, P14.
| Subject category | Comment text |
|---|---|
| Deposit | THIS MAY BE A DUPLICATE OF MAS SEQ# 0080650123 BLACK CLOUD MILL RELATED MAS FILE BLACK CLOUD MINE 0080650002: |
| Type | Date | Name | Affiliation | Comment |
|---|---|---|---|---|
| Reporter | 30-OCT-97 | Buckingham, David A. | U.S. Bureau of Mines |
Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.
| Status | Abandoned since 10/10/2000 |
|---|---|
| MSHA mine ID | 0500516 |
| Mine name (MSHA) | BLACK CLOUD MINE - LEADVILLE UNI |
| Current operator | Asarco Inc |
| Current controller (parent) | Grupo Mexico S A B de C V |
| Mine type | Underground (Metal / non-metal) |
MSHA cross-reference per the original MRDS record. Mine status and operator reflect MSHA's last published Mines export (February 2025); MSHA's public bulk feed has been unavailable since, so this may be out of date. See the Mine Data Retrieval System for current status.
Open MSHA's Mine Data Retrieval System for inspections, accidents, and violations for this mine.
MRDS records operators as of each record's last update (≤ 2019). Some of the operators listed here have since changed hands or dissolved:
Curated by qvyshift.com from publicly-reported M&A activity (SEC filings, press releases, USGS Mineral Yearbooks). Not authoritative — verify against primary sources before relying on it. The MSHA panel above is the current authoritative source for actively-permitted mines.
These are landing pages for further research — the state agencies don't currently expose per-mine deep links.