Coal production
0reported short tons
ACTIVE / OPERATOR PORTFOLIO
Ruby Hill Mining Company, LLC.
Membership and operating status are from the latest MSHA Mines snapshot. Open a mine for its ownership history.
MSHA OPERATOR ID0179653
MINE PORTFOLIO
2 of 2 mines and facilities
2025-01-01 – 2026-10-13. Active records; production reporting is not required.
Material, method and type filters apply to this table. The portfolio’s status applies to the entire page. GEM fields describe their own release, not the selected MSHA year.
| Mine | Location / type | Coal · short tons | Hours worked | Violations | Accident records | On-site inspection hours |
|---|---|---|---|---|---|---|
| Archimedes Underground Mine2602912 · Active4/8 quarters reported | Eureka, NVUnderground · MSHA: Gold Ore | 0 | 2,087 | 13 | 4 | 55.3 |
| Ruby Hill Mine2602307 · Active6/8 quarters reported | Eureka, NVSurface · MSHA: Gold Ore | 0 | 65,371 | 4 | 3 | 26.3 |
Production and hours sum available quarterly reports. — means unavailable; zero safety records means none in the selected imported period. Ownership reflects the current MSHA record.
LOCATION
Portfolio map
2 of 2 mines with usable MSHA coordinates. Select a marker to open a mine.
Mine coordinates
- Archimedes Underground Mine39.53306, -115.98306Open map ↗
- Ruby Hill Mine39.50472, -115.98722Open map ↗
Quarterly trends
2025 Q1 – 2026 Q4
Database snapshot · 2026-10-13. All 2 mines listed under this operator were checked; 2 have reports in the available quarters. Totals use current ownership.
Hours worked
67,458reported employee hours
Tons per hour
0.00production ÷ hours worked
Missing values appear as —. Totals use available reports. Tons per hour requires production and hours for the same quarters and a nonzero hours total. * Striped bars mark partial mine coverage or an incomplete quarter. See the table for coverage.
Quarterly data and reporting coverage
| Quarter | Coal (short tons) | Hours worked | Tons / hour | Avg. employees | Coverage |
|---|---|---|---|---|---|
| 2025 Q1 | 0 | 8,060 | 0.00 | 18 | 1/2 mines reporting |
| 2025 Q2 | 0 | 9,964 | 0.00 | 19 | 1/2 mines reporting |
| 2025 Q3 | 0 | 9,225 | 0.00 | 25 | 2/2 mines reporting |
| 2025 Q4 | 0 | 13,275 | 0.00 | 30 | 2/2 mines reporting |
| 2026 Q1 | 0 | 10,950 | 0.00 | 30 | 2/2 mines reporting |
| 2026 Q2 | 0 | 15,984 | 0.00 | 36 | 2/2 mines reporting |
| 2026 Q3 | — | — | — | — | No report |
| 2026 Q4 | — | — | — | — | No report |
Safety and enforcement
2025-01-01 – 2026-10-13
Violations
171 significant & substantial (S&S)
Accident records
70 records classified as fatality
Proposed penalties · USD
15,949.0017 of 17 violations with amounts
On-site inspection hours
81.5011 inspections · 11 with hours
Counts are published records, including contractor records. * The quarter was incomplete at the snapshot date; recent counts may rise as reports arrive. — means no reported amount or hours. Portfolio totals use current membership.
Quarterly safety data
| Quarter | Violations | S&S | Proposed USD | Accident records | Fatality records | Inspections | On-site hours |
|---|---|---|---|---|---|---|---|
| 2025-Q1 | 0 | 0 | — | 0 | 0 | 1 | 6.3 |
| 2025-Q2 | 0 | 0 | — | 0 | 0 | 0 | — |
| 2025-Q3 | 3 | 0 | 1,473.00 | 0 | 0 | 2 | 14.0 |
| 2025-Q4 | 2 | 0 | 2,252.00 | 0 | 0 | 1 | 6.5 |
| 2026-Q1 | 4 | 0 | 9,441.00 | 0 | 0 | 3 | 15.5 |
| 2026-Q2 | 6 | 1 | 2,481.00 | 0 | 0 | 2 | 29.3 |
| 2026-Q3 | 2 | 0 | 302.00 | 7 | 0 | 2 | 10.0 |
| 2026-Q4 * | 0 | 0 | — | 0 | 0 | 0 | — |
Most cited CFR sections
All violations issued in the selected period. Counts combine subsections.
Safety activity
- Ruby Hill Mine · 2602307
HANDTOOLS (NONPOWERED) · NO DYS AWY FRM WRK,NO RSTR ACT
Accident narrative
Driller Assistant was using a hammer to remove a clevis pin. IE struck left ring finger with hammer. Injury resulted in a fracture of the tuft bone in left ring finger.
- Archimedes Underground Mine · 2602912
FALL OF ROOF OR BACK · NO DYS AWY FRM WRK,NO RSTR ACT
Accident narrative
IE was finishing tying in a round. Loose material fell from the face, striking them on the hard hat.
- Ruby Hill Mine · 2602307
MACHINERY · NO DYS AWY FRM WRK,NO RSTR ACT
Accident narrative
Employee was looking upward at the drill and felt something fall into their right eye while wearing safety glasses and then felt a pop followed by tingling.
- Ruby Hill Mine · 2602307
HANDLING OF MATERIALS · NO DYS AWY FRM WRK,NO RSTR ACT
Accident narrative
Moving the hoist plug, while moving it to swing it over, smashed right index finger between hoist plug and pipe
- Archimedes Underground Mine · 2602912
HANDLING OF MATERIALS · NO DYS AWY FRM WRK,NO RSTR ACT
Accident narrative
Helper disconnect the water hose at the centrifuge by releasing the camlock fitting. Helper released the camlock, the fitting separated unexpectedly and struck the injured person on the chin, causing a minor laceration.
- Archimedes Underground Mine · 2602912
Regular Safety and Health Inspection · 9.5 on-site hours
- Archimedes Underground Mine · 2602912
57.11002 · $151.00 proposed
- Archimedes Underground Mine · 2602912
57.11002 · $151.00 proposed
- Archimedes Underground Mine · 2602912
OTHER · INJURIES DUE TO NATURAL CAUSES
Accident narrative
On the morning of July 21, 2026 at 11:01 the IP was found unresponsive on the deck of DDS-09. Emergency response team was called, IP was transported to hospital for evaluation
- Archimedes Underground Mine · 2602912
POWERED HAULAGE · DAYS RESTRICTED ACTIVITY ONLY
Accident narrative
IE was transporting a concrete block with a forklift and chain when the chain slipped, causing the suspended block to fall onto the employee's right foot.
- Ruby Hill Mine · 2602307
Compliance Follow-up Inspection · 0.5 on-site hours
- Ruby Hill Mine · 2602307
Regular Safety and Health Inspection · 8.5 on-site hours
- Ruby Hill Mine · 2602307
56.14130(g) · S&S · $398.00 proposed
- Ruby Hill Mine · 2602307
56.7002 · $151.00 proposed
- Ruby Hill Mine · 2602307
56.4104(a) · $151.00 proposed
- Archimedes Underground Mine · 2602912
Regular Safety and Health Inspection · 20.8 on-site hours
- Archimedes Underground Mine · 2602912
50.30(a) · $151.00 proposed
- Archimedes Underground Mine · 2602912
57.14205 · $504.00 proposed
- Archimedes Underground Mine · 2602912
57.9313 · $1,126.00 proposed
- Ruby Hill Mine · 2602307
Regular Safety and Health Inspection · 4.0 on-site hours
- Archimedes Underground Mine · 2602912
Compliance Follow-up Inspection · 4.3 on-site hours
- Archimedes Underground Mine · 2602912
Regular Safety and Health Inspection · 7.3 on-site hours
- Archimedes Underground Mine · 2602912
57.4102 · $1,818.00 proposed
- Archimedes Underground Mine · 2602912
57.4102 · $151.00 proposed
- Archimedes Underground Mine · 2602912
57.12018 · $3,736.00 proposed
Safety sources and definitions
MSHA Violations (issue date), Accidents (accident date), and Inspections (begin date). Snapshot 2026-10-13.
Counts describe published rows, including contractor records; accident records are not distinct incidents or numbers of people injured.
Zero means no matching records in the imported sources, not proof of no events. Historical coverage differs by source; absence before a source begins reporting is not a zero incident rate. Invalid or absent dates and records after the snapshot are excluded.
S&S means SIG_SUB=Y. Fatality records use DEGREE_INJURY_CD=01. Proposed penalties are not final assessed or paid amounts; missing dollar values are omitted.
Inspection hours are SUM_TOTAL_ON_SITE_HOURS attributed to the inspection start date, without supervisor/trainee hours. Missing hours are omitted; a started inspection may still be open.
Portfolio totals use current mine membership, including events before the current owner or operator's tenure.
CFR headings link to the current Title 30 index; they are not historical legal determinations.
SELECTED PORTFOLIO
1 linked controller.
Relationships reflect the selected mine status and current MSHA controller/operator fields.