MINE DETAILS
Little Six Corp. dba Short Mtn Silica
MSHA MINE ID4002964
LOCATION
Mine location
1 of 1 mine with usable MSHA coordinates. Select a marker to open a mine.
Mine coordinates
- Little Six Corp. dba Short Mtn Silica36.35972, -83.18500Open map ↗
Quarterly trends
2025 Q1 – 2026 Q4
Database snapshot · 2026-10-17. MSHA quarterly production and employment reports.
Coal production
—reported short tons
Hours worked
—reported employee hours
Tons per hour
—production ÷ hours worked
Missing values appear as —. Totals use available reports. Tons per hour requires production and hours for the same quarters and a nonzero hours total. * Striped bars mark partial mine coverage or an incomplete quarter. See the table for coverage.
Quarterly data and reporting coverage
| Quarter | Coal (short tons) | Hours worked | Tons / hour | Avg. employees | Coverage |
|---|---|---|---|---|---|
| 2025 Q1 | — | — | — | — | No report |
| 2025 Q2 | — | — | — | — | No report |
| 2025 Q3 | — | — | — | — | No report |
| 2025 Q4 | — | — | — | — | No report |
| 2026 Q1 | — | — | — | — | No report |
| 2026 Q2 | — | — | — | — | No report |
| 2026 Q3 | — | — | — | — | No report |
| 2026 Q4 | — | — | — | — | No report |
Safety and enforcement
2025-01-01 – 2026-10-17
Violations
3610 significant & substantial (S&S)
Accident records
60 records classified as fatality
Proposed penalties · USD
22,342.0036 of 36 violations with amounts
On-site inspection hours
258.758 inspections · 8 with hours
Counts are published records, including contractor records. * The quarter was incomplete at the snapshot date; recent counts may rise as reports arrive. — means no reported amount or hours. Portfolio totals use current membership.
Quarterly safety data
| Quarter | Violations | S&S | Proposed USD | Accident records | Fatality records | Inspections | On-site hours |
|---|---|---|---|---|---|---|---|
| 2025-Q1 | 8 | 4 | 4,675.00 | 1 | 0 | 1 | 42.5 |
| 2025-Q2 | 0 | 0 | — | 1 | 0 | 1 | 13.0 |
| 2025-Q3 | 15 | 2 | 2,621.00 | 1 | 0 | 2 | 71.3 |
| 2025-Q4 | 8 | 2 | 10,943.00 | 0 | 0 | 1 | 58.5 |
| 2026-Q1 | 0 | 0 | — | 2 | 0 | 2 | 21.0 |
| 2026-Q2 | 0 | 0 | — | 1 | 0 | 0 | — |
| 2026-Q3 | 5 | 2 | 4,103.00 | 0 | 0 | 1 | 52.5 |
| 2026-Q4 * | 0 | 0 | — | 0 | 0 | 0 | — |
Most cited CFR sections
All violations issued in the selected period. Counts combine subsections.
Safety activity
56.14207 · $151.00 proposed
56.14132(b)(1) · $165.00 proposed
Regular Safety and Health Inspection · 52.5 on-site hours
56.12028 · $151.00 proposed
56.9301 · S&S · $1,818.00 proposed
56.9300(a) · S&S · $1,818.00 proposed
HANDLING OF MATERIALS · DAYS AWAY FROM WORK ONLY
Accident narrative
A parent company EE was attempting to remove a ladder rack from company van on SMS property and felt a pull in right shoulder. Incident was reported same day but did not require a dr visit at the time. Injury has not improved since date of incident so EE had an MRI and will need surgery. EE is currently on a 15lb weight limit restriction.
Spot Inspection · 9.5 on-site hours
Impoundment Spot Inspection · 11.5 on-site hours
SLIP OR FALL OF PERSON · DYS AWY FRM WRK & RESTRCTD ACT
Accident narrative
EE was walking along inclined catwalk during freezing temperatures. Ice had accumulated on catwalk causing slick conditions. EE slipped and fell resulting in injury to knee.
DISORDERS (REPEATED TRAUMA) · OCCUPATNAL ILLNESS NOT DEG 1-6
Accident narrative
EE showed hearing loss after annual audiogram. EE was referred to an ENT specialist for follow up hearing test. EE showed similar hearing loss on follow up test as well. EE worked at mine sites previous to current employment and has history of shooting/loud hobby's outside of work.
56.15002 · S&S · $245.00 proposed
56.4602 · $366.00 proposed
56.14100(b) · $165.00 proposed
56.14100(b) · $165.00 proposed
56.12028 · $151.00 proposed
56.9300(a) · $366.00 proposed
56.9300(b) · S&S · $6,037.00 proposed
56.12032 · $3,448.00 proposed
Regular Safety and Health Inspection · 58.5 on-site hours
56.12032 · S&S · $432.00 proposed
Spot Inspection · 12.0 on-site hours
56.16005 · $151.00 proposed
56.12008 · $226.00 proposed
56.12013 · $151.00 proposed
Safety sources and definitions
MSHA Violations (issue date), Accidents (accident date), and Inspections (begin date). Snapshot 2026-10-17.
Counts describe published rows, including contractor records; accident records are not distinct incidents or numbers of people injured.
Zero means no matching records in the imported sources, not proof of no events. Historical coverage differs by source; absence before a source begins reporting is not a zero incident rate. Invalid or absent dates and records after the snapshot are excluded.
S&S means SIG_SUB=Y. Fatality records use DEGREE_INJURY_CD=01. Proposed penalties are not final assessed or paid amounts; missing dollar values are omitted.
Inspection hours are SUM_TOTAL_ON_SITE_HOURS attributed to the inspection start date, without supervisor/trainee hours. Missing hours are omitted; a started inspection may still be open.
Portfolio totals use current mine membership, including events before the current owner or operator's tenure.
CFR headings link to the current Title 30 index; they are not historical legal determinations.
OWNERSHIP
Operator and controller history
Current ownership comes from MSHA Mines. Historical start and end dates come from MSHA Controller and Operator History.
—
J Eric Tillirson et alcontrolsShort Mountain Silica CompanyoperatesLittle Six Corp. dba Short Mtn Silica
msha-controller-operator-history · controller/operator co-tenure derived on mine 4002964—
J D NicewondercontrolsShort Mountain Silica CompanyoperatesLittle Six Corp. dba Short Mtn Silica
msha-controller-operator-history · controller/operator co-tenure derived on mine 4002964Other historical summaries · source-specific periods
RECORD SUMMARY
Production, safety and enforcement
These summaries use the periods stated on each card, independently of the reporting period above.
01 / SAFETYwatch
Accidents and injuries
58 historical accident/injury rows; 0 coded fatalities and 1,709 lost days across the published record.
ACCIDENT + INJURY RECORD13 since 2021
accidentsmine-production-quarterly02 / COMPLIANCEwatch
Violations and penalties
416 violation rows across the full record; 119 carry an S&S flag and $131,561 appears in current assessed amounts.
ENFORCEMENT ACTIVITY112 since 2021
inspectionsviolationsassessed-violationsorders-107a03 / HEALTHwatch
Occupational health samples
118 personal; 5 area. 7 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.
OCCUPATIONAL EXPOSURE123 samples
personal-health-samplesarea-samples04 / PRODUCTIONcontext
Quarterly production and employment
28K employee hours and 48 summed average employees across reported subunits in the latest published quarter.
2002-Q40 tons
mine-production-quarterlymine-production-yearly05 / LEGALwatch
Contests, conferences and decisions
35 contested-violation rows, 35 civil-penalty docket/decision rows, and 9 conference records linked by issuance number.
POST-ISSUANCE LIFECYCLE79 linked rows
conferencescontested-violationscivil-penalty-dockets-decisions06 / CONTRACTORScontext
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.
ENTITY-LEVEL CONTEXT7 linked entities
contractor-production-quarterlycontractor-production-yearlyaccidentsviolations07 / INSPECTIONScontext
Inspections
126 inspection events and 4K published inspection hours across the historical record.
OVERSIGHT COVERAGE28 since 2021
inspectionsviolationsHEALTH SAMPLING
Silica and quartz
Coal quartz, metal/nonmetal personal samples and area samples. Snapshot Oct 17, 2026. 45 silica records across the mine’s published history.
Personal silica samples · concentration / limit
Quarterly mean · published C/E ratio
— No eligible measurements. * Quarter in progress. Means describe the available samples, not average exposure across the mine.
Quartz % is the sample’s quartz content; µg/m³ is its reported concentration. Personal C/E is the ratio to the limit published with that sample. Personal and area concentration units and void status are not specified in those source files.
| Date / sample | Dataset / analyte | Occupation / area | Measurement | Sample status | Published action |
|---|---|---|---|---|---|
| No silica records match these filters. Missing samples do not establish safe conditions. | |||||
Sources and interpretation
- Coal means use numeric concentrations from samples marked not voided, excluding control/invalid sample types and dates after the snapshot. Missing values remain null; reported zeroes remain zero.
- Quarterly means describe available samples, not mine-wide or worker-average exposure. Quarters with no eligible measurements remain empty; the current quarter is partial.
- Personal C/E is MSHA's published concentration-to-limit ratio. A value above 1 is not by itself a citation or a determination under the 2024 silica rule. Personal and area files do not publish a void-status field.
- Area records include bulk-dust analyses and are kept separate from personal exposure results. Their concentration units are not specified in the source dictionary.
- Missing samples do not establish safe conditions. Coal quartz percentage and concentration are separate measures. No compliance threshold is inferred for coal samples.
Coal quartz field definitions ↗Metal/nonmetal personal field definitions ↗Metal/nonmetal area field definitions ↗
EIA + TITLE 30
EIA production and cited regulations
EIA annual figures are reported separately from MSHA. Regulation links use the current eCFR snapshot.
Not present in the 2024 EIA coal workbook.
This can mean the operation is non-coal, inactive for the annual period, or outside the EIA-7A reporting population.
30 CFR 56.14207Parking procedures for unattended equipment.1 recent row ↗30 CFR 56.14132Horns and backup alarms.1 recent row ↗30 CFR 56.12028Testing grounding systems.2 recent rows ↗30 CFR 56.9301Dump site restraints.1 recent row ↗30 CFR 56.9300Berms or guardrails.3 recent rows ↗30 CFR 56.15002Hard hats.1 recent row ↗30 CFR 56.4602Gauges and regulators.1 recent row ↗30 CFR 56.14100Safety defects; examination, correction and records.2 recent rows ↗
RECENT PUBLIC RECORDS
Recent violations and samples
Latest records retained for inspection; aggregates above use the full source history.
977706456.14207Citation
977705256.14132(b)(1)Citation
977705156.12028Citation
977705056.9301S&S
977704956.9300(a)S&S
977700956.15002S&S
977700856.4602Citation
977700756.14100(b)Citation
Coal dust, noise and other contaminants. Silica records above ↑
Respirable dust, <.1mgBall Mill Operator
C/E: 00.00Concentration: 0000.00 · limit: 0000.00Source unit unspecified
Respirable dust, <.1mgBuilding Repair/Maint.
C/E: 00.00Concentration: 0000.00 · limit: 0000.00Source unit unspecified
Respirable dust, <.1mgCrusher Oper/Worker
C/E: 00.00Concentration: 0000.00 · limit: 0000.00Source unit unspecified
Respirable dust, <.1mgLaborer, Bullgang
C/E: 00.00Concentration: 0000.00 · limit: 0000.00Source unit unspecified
Respirable dust, <.1mgBall Mill Operator
C/E: 00.00Concentration: 0000.00 · limit: 0000.00Source unit unspecified
Respirable dust, <.1mgCrusher Oper/Worker
C/E: 00.00Concentration: 0000.00 · limit: 0000.00Source unit unspecified
Respirable dust, <.1mgKiln/Dryer Operator
C/E: 00.00Concentration: 0000.00 · limit: 0000.00Source unit unspecified
Respirable dust, <.1mgFront-end Loader Operator
C/E: 00.00Concentration: 0000.00 · limit: 0000.00Source unit unspecified
SOURCE COVERAGE
Reporting dates and coverage
16 datasets contain linked records. Missing datasets are listed below.
DATASETROWSWINDOWSTATUS
Accident, Injuries, and Illnessessafety · contractors58Feb 3, 2000—Apr 21, 2026mine-keyed
Addresses of Recordidentity · logistics1Aug 13, 1990—Aug 13, 1990mine-keyed
Assessed Violationscompliance · legal413Feb 29, 2000—Aug 14, 2026mine-keyed
Civil Penalty Dockets and Decisionscompliance · legal35Jul 9, 2012—Aug 16, 2025mine-keyed
Coal Dust Sampleshealth · safety—No published rowsabsent / not applicable
Conferencescompliance · legal9Jun 24, 2013—Oct 23, 2024mine-keyed
Contested Violationscompliance · legal35Apr 28, 2011—Jul 19, 2026mine-keyed
Contractor Employment and Production — Quarterlycontractors · production · safety1,098Not published—Not publishedentity-linked
Contractor Employment and Production — Yearlycontractors · production · safety235Not published—Not publishedentity-linked
Controller and Operator Historyidentity · compliance2Nov 1, 1987—Nov 1, 1987mine-keyed
Mine Employment and Production — Quarterlyproduction · safety · compliance36Not published—Not publishedmine-keyed
Mine Employment and Production — Yearlyproduction · safety · compliance81Not published—Not publishedmine-keyed
Inspectionssafety · compliance126Feb 29, 2000—Jul 19, 2026mine-keyed
Minesidentity · production · logistics1Not published—Not publishedmine-keyed
Metal and Nonmetal Area Sampleshealth · safety5Jul 15, 2015—Jul 15, 2015mine-keyed
Metal and Nonmetal Personal Health Sampleshealth · safety118Mar 22, 2001—Mar 25, 2026mine-keyed
Noise Sampleshealth · safety · equipment—No published rowsabsent / not applicable
Quartz Samples — Coalhealth · safety—No published rowsabsent / not applicable
Violationscompliance · safety · legal416Feb 29, 2000—Aug 14, 2026mine-keyed
107(a) Orders Issuedsafety · compliance—No published rowsabsent / not applicable
NOTES
Limitations
- Contractor production is entity-level and is never represented as mine-attributable.
- Missing rows can mean no event, publication delay, identity mismatch, or inapplicability.