# Soldier Canyon

- **MSHA mine ID:** 4200077
- **Status:** Abandoned and Sealed
- **Type / commodity:** Underground / Coal (Bituminous)
- **Location:** Carbon, UT
- **Operator:** Canyon Fuel Company Llc
- **Controller:** Wolverine Fuels LLC
- **Public source rows linked:** 13
- **Source coverage:** 5 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**Wolverine Fuels LLC (0110263) → Canyon Fuel Company Llc (P23684) → Soldier Canyon (4200077)**

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

## Controller and operator valid-time history

- **Mariononi John A → Premium Coal Company:** 1950-01-01 through 1974-12-10; derived from co-tenure at mine 4200077; source `msha-controller-operator-history`.
- **Calmat Company → Soldier Creek Coal Company:** 1974-12-11 through 1986-12-31; derived from co-tenure at mine 4200077; source `msha-controller-operator-history`.
- **Sunoco, Inc. → Soldier Creek Coal Company:** 1987-01-01 through 1993-09-15; derived from co-tenure at mine 4200077; source `msha-controller-operator-history`.
- **El Paso Energy Corp → Soldier Creek Coal Company:** 1993-09-16 through 1996-12-19; derived from co-tenure at mine 4200077; source `msha-controller-operator-history`.
- **Arch Resources Inc → Canyon Fuel Company Llc:** 1996-12-20 through 2013-08-16; derived from co-tenure at mine 4200077; source `msha-controller-operator-history`.
- **Wolverine Fuels LLC → Canyon Fuel Company Llc:** 2013-08-17 through current/open; derived from co-tenure at mine 4200077; source `msha-controller-operator-history`.

- History rows: 6
- 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: 2026-10-13T11:19:05.459773+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 1 violation rows across the full record; 0 carry an S&S flag and $0 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 — No published quarter:** Quarterly production and employment The source remains registered, but no mine-keyed quarterly production row was published.
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 4 inspection events and 51 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.

No retained recent violation standard resolved to the current Title 30 index.

## Source coverage

- **Addresses of Record:** 1 rows; 1999-08-26 through 1999-08-26; source ID `msha-addresses`
- **Controller and Operator History:** 6 rows; 1950-01-01 through 1996-12-20; source ID `msha-controller-operator-history`
- **Inspections:** 4 rows; 2000-07-01 through 2001-05-29; source ID `msha-inspections`
- **Mines:** 1 rows; unknown through unknown; source ID `msha-mines`
- **Violations:** 1 rows; 2000-07-01 through 2000-07-01; 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/soldier-canyon-4200077`
- JSON: `/api/v1/mines/soldier-canyon-4200077`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/4200077/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/4200077/relationships`
- MCP resource: `mine://4200077/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`