# OK and Hidden Treasure

- **MSHA mine ID:** 4202431
- **Status:** Active
- **Type / commodity:** Surface / Copper Ore NEC
- **Location:** Beaver, UT
- **Operator:** Milford Mining Company Utah, LLC
- **Controller:** Horizon Corporation
- **Public source rows linked:** 3,721
- **Source coverage:** 16 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**Horizon Corporation (0176801) → Milford Mining Company Utah, LLC (0153553) → OK and Hidden Treasure (4202431)**

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

## Controller and operator valid-time history

- **Mark D  Dotson → Western Utah Copper Company:** 2006-03-08 through 2011-10-27; derived from co-tenure at mine 4202431; source `msha-controller-operator-history`.
- **Skye Minerals Partners LLC et al → CS Mining, LLC:** 2011-10-28 through 2017-08-28; derived from co-tenure at mine 4202431; source `msha-controller-operator-history`.
- **Ultimate Zenith LTD et al → Milford Mining Company Utah, LLC:** 2017-08-29 through 2023-05-02; derived from co-tenure at mine 4202431; source `msha-controller-operator-history`.
- **May Pacific LTD et al → Milford Mining Company Utah, LLC:** 2017-08-29 through 2023-05-02; derived from co-tenure at mine 4202431; source `msha-controller-operator-history`.
- **Horizon Corporation → Milford Mining Company Utah, LLC:** 2023-05-03 through current/open; derived from co-tenure at mine 4202431; source `msha-controller-operator-history`.

- History rows: 5
- Typed edges: 12
- 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 — 7 since 2021:** Accidents and injuries 19 historical accident/injury rows; 0 coded fatalities and 318 lost days across the published record.
2. **COMPLIANCE — 114 since 2021:** Violations and penalties 236 violation rows across the full record; 63 carry an S&S flag and $143,158 appears in current assessed amounts.
3. **HEALTH — 55 samples:** Occupational health samples 54 personal; 1 area. 4 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 57K employee hours and 99 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 18 linked rows:** Contests, conferences and decisions 7 contested-violation rows, 7 civil-penalty docket/decision rows, and 4 conference records linked by issuance number.
6. **CONTRACTORS — 16 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 — 23 since 2021:** Inspections 60 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 56.14100 — Safety defects; examination, correction and records.** (4 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14100
- **30 CFR 56.14132 — Horns and backup alarms.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14132
- **30 CFR 56.4200 — General requirements.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-C/section-56.4200
- **30 CFR 47.41 — Requirement for container labels.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-H/part-47/subpart-E/section-47.41
- **30 CFR 56.4101 — Warning signs.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-C/section-56.4101
- **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 56.12008 — Insulation and fittings for power wires and cables.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12008
- **30 CFR 56.12032 — Inspection and cover plates.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12032

## Source coverage

- **Accident, Injuries, and Illnesses:** 19 rows; 2014-05-22 through 2026-02-03; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 2022-08-08 through 2022-08-08; source ID `msha-addresses`
- **Metal and Nonmetal Area Samples:** 1 rows; 2015-09-30 through 2015-09-30; source ID `msha-area-samples`
- **Assessed Violations:** 232 rows; 2008-02-07 through 2026-04-15; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 7 rows; 2011-12-29 through 2016-06-17; source ID `msha-civil-penalty-dockets-decisions`
- **Conferences:** 4 rows; 2025-07-07 through 2025-07-07; source ID `msha-conferences`
- **Contested Violations:** 7 rows; 2009-11-18 through 2015-07-07; source ID `msha-contested-violations`
- **Contractor Employment and Production — Quarterly:** 2,434 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 426 rows; unknown through unknown; source ID `msha-contractor-production-yearly`
- **Controller and Operator History:** 5 rows; 2006-03-08 through 2017-08-29; source ID `msha-controller-operator-history`
- **Inspections:** 60 rows; 2008-02-07 through 2026-09-15; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 189 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 45 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:** 54 rows; 2013-01-04 through 2026-04-16; source ID `msha-personal-health-samples`
- **Violations:** 236 rows; 2008-02-07 through 2026-04-15; 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/ok-and-hidden-treasure-4202431`
- JSON: `/api/v1/mines/ok-and-hidden-treasure-4202431`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/4202431/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/4202431/relationships`
- MCP resource: `mine://4202431/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`