# BISON MINE

- **MSHA mine ID:** 3610107
- **Status:** Active
- **Type / commodity:** Underground / Crushed, Broken Limestone NEC
- **Location:** Armstrong, PA
- **Operator:** ALLEGHENY MINERAL CORPORATION
- **Controller:** Snyder Associated Companies Inc
- **Public source rows linked:** 3,239
- **Source coverage:** 16 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**Snyder Associated Companies Inc (M00734) → ALLEGHENY MINERAL CORPORATION (L00874) → BISON MINE (3610107)**

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

## Controller and operator valid-time history

- **Snyder Associated Companies Inc → Allegheny Mineral Corporation:** 2014-06-25 through current/open; derived from co-tenure at mine 3610107; 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 — 6 since 2021:** Accidents and injuries 9 historical accident/injury rows; 0 coded fatalities and 63 lost days across the published record.
2. **COMPLIANCE — 25 since 2021:** Violations and penalties 100 violation rows across the full record; 13 carry an S&S flag and $24,252 appears in current assessed amounts.
3. **HEALTH — 152 samples:** Occupational health samples 140 personal; 12 area. 1 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 9K employee hours and 15 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 52 linked rows:** Contests, conferences and decisions 22 contested-violation rows, 22 civil-penalty docket/decision rows, and 8 conference records linked by issuance number.
6. **CONTRACTORS — 9 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 — 37 since 2021:** Inspections 75 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 57.14108 — Overhead drive belts.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-M/section-57.14108
- **30 CFR 57.12008 — Insulation and fittings for power wires and cables.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-K/section-57.12008
- **30 CFR 57.17001 — Illumination of surface working areas.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-P/section-57.17001
- **30 CFR 57.14101 — Brakes.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-M/section-57.14101
- **30 CFR 57.15004 — Eye protection.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-N/section-57.15004
- **30 CFR 57.12020 — Protection of persons at switchgear.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-K/section-57.12020
- **30 CFR 57.20003 — Housekeeping.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-S/section-57.20003
- **30 CFR 57.15003 — Protective footwear.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-N/section-57.15003
- **30 CFR 57.12016 — Work on electrically-powered equipment.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-K/section-57.12016
- **30 CFR 57.14100 — Safety defects; examination, correction and records.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-M/section-57.14100

## Source coverage

- **Accident, Injuries, and Illnesses:** 9 rows; 2015-09-28 through 2024-07-31; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 2025-02-21 through 2025-02-21; source ID `msha-addresses`
- **Metal and Nonmetal Area Samples:** 12 rows; 2022-04-14 through 2026-03-18; source ID `msha-area-samples`
- **Assessed Violations:** 95 rows; 2015-05-18 through 2026-05-05; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 22 rows; 2017-09-29 through 2026-10-06; source ID `msha-civil-penalty-dockets-decisions`
- **Conferences:** 8 rows; 2016-10-13 through 2018-06-18; source ID `msha-conferences`
- **Contested Violations:** 22 rows; 2017-01-11 through 2026-03-31; source ID `msha-contested-violations`
- **Contractor Employment and Production — Quarterly:** 2,143 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 448 rows; unknown through unknown; source ID `msha-contractor-production-yearly`
- **Controller and Operator History:** 1 rows; 2014-06-25 through 2014-06-25; source ID `msha-controller-operator-history`
- **Inspections:** 75 rows; 2015-02-23 through 2026-08-31; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 126 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 36 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:** 140 rows; 2017-06-01 through 2026-09-02; source ID `msha-personal-health-samples`
- **Violations:** 100 rows; 2015-05-18 through 2026-05-05; 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/bison-mine-3610107`
- JSON: `/api/v1/mines/bison-mine-3610107`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/3610107/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/3610107/relationships`
- MCP resource: `mine://3610107/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`