# RedHawk Tombstone Project

- **MSHA mine ID:** 0203102
- **Status:** Abandoned
- **Type / commodity:** Underground / Silver Ore
- **Location:** Cochise, AZ
- **Operator:** RedHawk Exploration & Mining Inc
- **Controller:** Eberhardt (Ed)  Mueller
- **Public source rows linked:** 35
- **Source coverage:** 8 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**Eberhardt (Ed)  Mueller (0057369) → RedHawk Exploration & Mining Inc (0068284) → RedHawk Tombstone Project (0203102)**

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

## Controller and operator valid-time history

- **Eberhardt (Ed)  Mueller → RedHawk Exploration & Mining Inc:** 2005-09-28 through current/open; derived from co-tenure at mine 0203102; source `msha-controller-operator-history`.

- History rows: 1
- Typed edges: 3
- 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: 2026-10-13T11:19:05.459773+00:00.

## Assessment signals

1. **SAFETY — 0 since 2021:** Accidents and injuries 0 historical accident/injury rows; 0 coded fatalities and 0 lost days across the published record.
2. **COMPLIANCE — 0 since 2021:** Violations and penalties 9 violation rows across the full record; 3 carry an S&S flag and $3,289 appears in current assessed amounts.
3. **HEALTH — 0 samples:** Occupational health samples No published samples. 0 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 1K employee hours and 4 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 0 linked rows:** Contests, conferences and decisions 0 contested-violation rows, 0 civil-penalty docket/decision rows, and 0 conference records linked by issuance number.
6. **CONTRACTORS — 0 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 — 0 since 2021:** Inspections 3 inspection events and 39 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 57.8520 — Ventilation plan.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-G/section-57.8520
- **30 CFR 57.5067 — Engines.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-D/section-57.5067
- **30 CFR 48.8 — 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-A/section-48.8
- **30 CFR 48.25 — Training of new miners; minimum courses of instruction; hours of instruction.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-H/part-48/subpart-B/section-48.25
- **30 CFR 48.3 — Training plans; time of submission; where filed; information required; time for approval; method for disapproval; commencement of training; approval of instructors.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-H/part-48/subpart-A/section-48.3
- **30 CFR 57.14101 — Brakes.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-M/section-57.14101
- **30 CFR 41.12 — Changes; notification by operator.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-G/part-41/subpart-B/section-41.12

## Source coverage

- **Addresses of Record:** 1 rows; 2006-09-05 through 2006-09-05; source ID `msha-addresses`
- **Assessed Violations:** 9 rows; 2006-01-31 through 2006-02-01; source ID `msha-assessed-violations`
- **Controller and Operator History:** 1 rows; 2005-09-28 through 2005-09-28; source ID `msha-controller-operator-history`
- **Inspections:** 3 rows; 2006-01-31 through 2006-08-29; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 9 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 2 rows; unknown through unknown; source ID `msha-mine-production-yearly`
- **Mines:** 1 rows; unknown through unknown; source ID `msha-mines`
- **Violations:** 9 rows; 2006-01-31 through 2006-02-01; 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/redhawk-tombstone-project-0203102`
- JSON: `/api/v1/mines/redhawk-tombstone-project-0203102`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/0203102/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/0203102/relationships`
- MCP resource: `mine://0203102/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`