# Golden Chest Mine

- **MSHA mine ID:** 1000414
- **Status:** Active
- **Type / commodity:** Underground / Gold Ore
- **Location:** Shoshone, ID
- **Operator:** Idaho Strategic Resources Inc
- **Controller:** Grant A  Brackebusch
- **Public source rows linked:** 822
- **Source coverage:** 15 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**Grant A  Brackebusch (M10775) → Idaho Strategic Resources Inc (L14100) → Golden Chest Mine (1000414)**

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

## Controller and operator valid-time history

- **Golden Chest Mining Company → Golden Chest Mining Company:** 1981-07-01 through 2014-06-04; derived from co-tenure at mine 1000414; source `msha-controller-operator-history`.
- **Keith  Jones → SMALL MINE DEVELOPMENT L.L.C.:** 2014-06-05 through 2015-11-08; derived from co-tenure at mine 1000414; source `msha-controller-operator-history`.
- **Ronald W  Guill → SMALL MINE DEVELOPMENT L.L.C.:** 2014-06-05 through 2011-01-27; derived from co-tenure at mine 1000414; source `msha-controller-operator-history`.
- **Grant A  Brackebusch et al → Idaho Strategic Resources Inc:** 2015-11-09 through current/open; derived from co-tenure at mine 1000414; source `msha-controller-operator-history`.

- History rows: 4
- Typed edges: 11
- Interval anomalies: 1
- 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 — 2 since 2021:** Accidents and injuries 2 historical accident/injury rows; 0 coded fatalities and 237 lost days across the published record.
2. **COMPLIANCE — 56 since 2021:** Violations and penalties 144 violation rows across the full record; 19 carry an S&S flag and $33,786 appears in current assessed amounts.
3. **HEALTH — 59 samples:** Occupational health samples 39 personal; 20 area. 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 26K employee hours and 44 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 2 linked rows:** Contests, conferences and decisions 1 contested-violation rows, 1 civil-penalty docket/decision rows, and 0 conference records linked by issuance number.
6. **CONTRACTORS — 3 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 — 36 since 2021:** Inspections 74 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 57.15001 — First aid materials.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-N/section-57.15001
- **30 CFR 57.4602 — Gauges and regulators.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-C/section-57.4602
- **30 CFR 57.11052 — Refuge areas.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-J/section-57.11052
- **30 CFR 57.6305 — Unused explosive material.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-E/section-57.6305
- **30 CFR 57.6132 — Magazine requirements.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-E/section-57.6132
- **30 CFR 57.12028 — Testing grounding systems.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-K/section-57.12028
- **30 CFR 57.12004 — Electrical conductors.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-K/section-57.12004
- **30 CFR 57.12018 — Identification of power switches.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-K/section-57.12018
- **30 CFR 50.30 — Preparation and submission of MSHA Form 7000-2—Quarterly Employment and Coal Production Report.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-I/part-50/subpart-D/section-50.30
- **30 CFR 57.4201 — Inspection.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-C/section-57.4201
- **30 CFR 57.4104 — Combustible waste.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-C/section-57.4104

## Source coverage

- **Accident, Injuries, and Illnesses:** 2 rows; 2021-09-27 through 2024-10-18; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 2018-01-09 through 2018-01-09; source ID `msha-addresses`
- **Metal and Nonmetal Area Samples:** 20 rows; 2020-10-27 through 2026-03-18; source ID `msha-area-samples`
- **Assessed Violations:** 143 rows; 2014-08-05 through 2025-11-05; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 1 rows; 2016-06-22 through 2016-06-22; source ID `msha-civil-penalty-dockets-decisions`
- **Contested Violations:** 1 rows; 2015-02-10 through 2015-02-10; source ID `msha-contested-violations`
- **Contractor Employment and Production — Quarterly:** 226 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 50 rows; unknown through unknown; source ID `msha-contractor-production-yearly`
- **Controller and Operator History:** 4 rows; 1981-07-01 through 2015-11-09; source ID `msha-controller-operator-history`
- **Inspections:** 74 rows; 2014-08-05 through 2026-08-03; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 90 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 26 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; 2015-02-12 through 2026-03-18; source ID `msha-personal-health-samples`
- **Violations:** 144 rows; 2014-08-05 through 2025-11-05; 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/golden-chest-mine-1000414`
- JSON: `/api/v1/mines/golden-chest-mine-1000414`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/1000414/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/1000414/relationships`
- MCP resource: `mine://1000414/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`