# York Canyon Surface Mine

- **MSHA mine ID:** 2900845
- **Status:** Abandoned
- **Type / commodity:** Surface / Coal (Bituminous)
- **Location:** Colfax, NM
- **Operator:** Pittsburg & Midway Coal Mining Company
- **Controller:** Chevron Corporation
- **Public source rows linked:** 936
- **Source coverage:** 16 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**Chevron Corporation (C00877) → Pittsburg & Midway Coal Mining Company (P01032) → York Canyon Surface Mine (2900845)**

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

## Controller and operator valid-time history

- **Kaiser Steel Corp → Kaiser Coal Corp Of York Canyon:** 1972-10-01 through 1989-02-10; derived from co-tenure at mine 2900845; source `msha-controller-operator-history`.
- **Chevron Corporation → Pittsburg & Midway Coal Mining Company:** 1989-02-11 through current/open; derived from co-tenure at mine 2900845; source `msha-controller-operator-history`.

- History rows: 2
- Typed edges: 6
- 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 21 historical accident/injury rows; 0 coded fatalities and 1,281 lost days across the published record.
2. **COMPLIANCE — 0 since 2021:** Violations and penalties 102 violation rows across the full record; 21 carry an S&S flag and $23,995 appears in current assessed amounts.
3. **HEALTH — 175 samples:** Occupational health samples 125 coal dust; 10 coal quartz; 40 noise. 0 personal-sample rows have a published C/E ratio above 1; 1 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 7K employee hours and 10 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 30 linked rows:** Contests, conferences and decisions 0 contested-violation rows, 17 civil-penalty docket/decision rows, and 13 conference records linked by issuance number.
6. **CONTRACTORS — 5 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 47 inspection events and 1K 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 77.1110 — Examination and maintenance of firefighting equipment.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-L/section-77.1110
- **30 CFR 77.502 — Electric equipment; examination, testing, and maintenance.** (3 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-F/section-77.502
- **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 77.1713 — Daily inspection of surface coal mine; certified person; reports of inspection.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-R/section-77.1713
- **30 CFR 47.44 — Temporary, portable containers.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-H/part-47/subpart-E/section-47.44
- **30 CFR 77.404 — Machinery and equipment; operation and maintenance.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-E/section-77.404
- **30 CFR 77.1104 — Accumulations of combustible materials.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-L/section-77.1104
- **30 CFR 77.513 — Insulating mats at power switches.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-F/section-77.513
- **30 CFR 77.1606 — Loading and haulage equipment; inspection and maintenance.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-Q/section-77.1606

## Source coverage

- **Accident, Injuries, and Illnesses:** 21 rows; 2000-01-19 through 2004-11-23; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 2005-08-31 through 2005-08-31; source ID `msha-addresses`
- **Assessed Violations:** 100 rows; 2000-01-26 through 2004-02-04; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 17 rows; 2000-10-18 through 2004-03-31; source ID `msha-civil-penalty-dockets-decisions`
- **Coal Dust Samples:** 125 rows; 2000-01-17 through 2005-01-19; source ID `msha-coal-dust-samples`
- **Conferences:** 13 rows; 2000-07-20 through 2004-06-18; source ID `msha-conferences`
- **Contractor Employment and Production — Quarterly:** 302 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 72 rows; unknown through unknown; source ID `msha-contractor-production-yearly`
- **Controller and Operator History:** 2 rows; 1972-10-01 through 1989-02-11; source ID `msha-controller-operator-history`
- **Inspections:** 47 rows; 2000-01-26 through 2005-08-10; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 66 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 17 rows; unknown through unknown; source ID `msha-mine-production-yearly`
- **Mines:** 1 rows; unknown through unknown; source ID `msha-mines`
- **Noise Samples:** 40 rows; 2001-03-07 through 2005-01-18; source ID `msha-noise-samples`
- **Quartz Samples — Coal:** 10 rows; 2000-01-08 through 2002-05-21; source ID `msha-quartz-samples`
- **Violations:** 102 rows; 2000-01-26 through 2004-02-04; 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/york-canyon-surface-mine-2900845`
- JSON: `/api/v1/mines/york-canyon-surface-mine-2900845`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/2900845/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/2900845/relationships`
- MCP resource: `mine://2900845/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`