# Mineral Ridge Mine

- **MSHA mine ID:** 2602302
- **Status:** Active
- **Type / commodity:** Surface / Gold Ore
- **Location:** Esmeralda, NV
- **Operator:** Mineral Ridge Gold, LLC
- **Controller:** Capstone Commodities DMCC
- **Public source rows linked:** 3,059
- **Source coverage:** 15 / 20
- **Generated:** 2026-10-17T06:17:15.228Z

## Current entity hierarchy

**Capstone Commodities DMCC (0196821) → Mineral Ridge Gold, LLC (0111425) → Mineral Ridge Mine (2602302)**

Current identity source: `msha-mines`. This is a current snapshot, not a historical claim.

## Controller and operator valid-time history

- **Cornucopia Resources Ltd → Mineral Ridge Resources Inc:** 1996-08-01 through 1998-10-20; derived from co-tenure at mine 2602302; source `msha-controller-operator-history`.
- **Hycroft Mining Corporation → Mineral Ridge Resources Inc:** 1998-10-21 through 2000-11-07; derived from co-tenure at mine 2602302; source `msha-controller-operator-history`.
- **Ken  Ripley et al → Golden Phoenix Minerals Inc:** 2000-11-08 through 2010-07-03; derived from co-tenure at mine 2602302; source `msha-controller-operator-history`.
- **Chris  Zerga et al → Mineral Ridge Gold, LLC:** 2010-07-04 through 2019-01-27; derived from co-tenure at mine 2602302; source `msha-controller-operator-history`.
- **Pete  Hawley et al → Mineral Ridge Gold, LLC:** 2010-07-04 through 2019-01-27; derived from co-tenure at mine 2602302; source `msha-controller-operator-history`.
- **Scorpio Gold Corporation → Mineral Ridge Gold, LLC:** 2019-01-28 through 2025-08-24; derived from co-tenure at mine 2602302; source `msha-controller-operator-history`.
- **Capstone Commodities DMCC → Mineral Ridge Gold, LLC:** 2025-08-25 through current/open; derived from co-tenure at mine 2602302; source `msha-controller-operator-history`.

- History rows: 7
- Typed edges: 17
- Interval anomalies: 0
- Valid-time bounds: inclusive; date granularity; null end means open-ended in the upstream history row; not independent proof of present control.
- Transaction-time observation: 2026-10-17T05:35:58.500035+00:00.

## Assessment signals

1. **SAFETY — 1 since 2021:** Accidents and injuries 31 historical accident/injury rows; 1 coded fatalities and 380 lost days across the published record.
2. **COMPLIANCE — 10 since 2021:** Violations and penalties 132 violation rows across the full record; 29 carry an S&S flag and $225,825 appears in current assessed amounts.
3. **HEALTH — 39 samples:** Occupational health samples 39 personal. 8 personal-sample rows have a published C/E ratio above 1; 0 noise rows have an action-level or PEL dose above 100%. These are separate measures, not a silica exceedance count. Silica results and sample status are shown separately.
4. **PRODUCTION — 0 tons:** Quarterly production and employment 4K employee hours and 9 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 41 linked rows:** Contests, conferences and decisions 17 contested-violation rows, 17 civil-penalty docket/decision rows, and 7 conference records linked by issuance number.
6. **CONTRACTORS — 10 linked entities:** Contractors Contractors are linked through this mine’s violation or accident records. Their production and hours cover all their operations, so they are not included in this mine’s totals.
7. **INSPECTIONS — 12 since 2021:** Inspections 67 inspection events and 2K published inspection hours across the historical record.

## EIA annual operating context

No matched record in the 2024 EIA coal-public workbook. This may be inapplicable for a non-coal operation.

## Recent Title 30 crosswalk

Snapshot current through 2026-08-19.

- **30 CFR 56.12027 — Grounding mobile equipment.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12027
- **30 CFR 50.30 — Preparation and submission of MSHA Form 7000-2—Quarterly Employment and Coal Production Report.** (4 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-I/part-50/subpart-D/section-50.30
- **30 CFR 48.25 — Training of new miners; minimum courses of instruction; hours of instruction.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-H/part-48/subpart-B/section-48.25
- **30 CFR 48.26 — Experienced miner training.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-H/part-48/subpart-B/section-48.26
- **30 CFR 41.30 — Address of record and telephone number.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-G/part-41/subpart-C/section-41.30
- **30 CFR 48.28 — Annual refresher training of miners; minimum courses of instruction; hours of instruction.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-H/part-48/subpart-B/section-48.28
- **30 CFR 48.23 — Training plans; time of submission; where filed; information required; time for approval; method for disapproval; commencement of training; approval of instructors.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-H/part-48/subpart-B/section-48.23
- **30 CFR 56.4201 — Inspection.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-C/section-56.4201
- **30 CFR 56.4130 — Electric substations and liquid storage facilities.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-C/section-56.4130

## Source coverage

- **Accident, Injuries, and Illnesses:** 31 rows; 2001-06-25 through 2026-08-04; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 2012-06-10 through 2012-06-10; source ID `msha-addresses`
- **Assessed Violations:** 123 rows; 2000-06-06 through 2026-04-09; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 17 rows; 2009-03-17 through 2018-04-04; source ID `msha-civil-penalty-dockets-decisions`
- **Conferences:** 7 rows; 2005-06-08 through 2015-09-22; source ID `msha-conferences`
- **Contested Violations:** 17 rows; 2004-08-09 through 2017-09-13; source ID `msha-contested-violations`
- **Contractor Employment and Production — Quarterly:** 2,159 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 390 rows; unknown through unknown; source ID `msha-contractor-production-yearly`
- **Controller and Operator History:** 7 rows; 1996-08-01 through 2010-07-04; source ID `msha-controller-operator-history`
- **Inspections:** 67 rows; 2000-02-02 through 2026-04-08; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 22 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 46 rows; unknown through unknown; source ID `msha-mine-production-yearly`
- **Mines:** 1 rows; unknown through unknown; source ID `msha-mines`
- **Metal and Nonmetal Personal Health Samples:** 39 rows; 2004-10-14 through 2024-10-01; source ID `msha-personal-health-samples`
- **Violations:** 132 rows; 2000-06-06 through 2026-04-09; source ID `msha-violations`

## Caveats

- This is public-record decision support, not legal advice or an official MSHA record.
- Missing data can indicate no event, publication delay, an unresolved identity, or inapplicability.
- Contractor production data is entity-level and is not attributed to this mine.

## Alternate representations

- HTML: `/mines/mineral-ridge-mine-2602302`
- JSON: `/api/v1/mines/mineral-ridge-mine-2602302`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/2602302/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/2602302/relationships`
- MCP resource: `mine://2602302/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`