MINE DETAILS
Deserado Mine
MSHA MINE ID0503505
LOCATION
Mine location
1 of 1 mine with usable MSHA coordinates. Select a marker to open a mine.
Mine coordinates
- Deserado Mine40.17083, -108.72889Open map ↗
Quarterly trends
2025 Q1 – 2026 Q4
Database snapshot · 2026-10-13. MSHA quarterly production and employment reports.
Coal production
2,163,076reported short tons
Hours worked
444,172reported employee hours
Tons per hour
4.87production ÷ 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 | 482,707 | 77,538 | 6.23 | 161 | 1/1 mines reporting |
| 2025 Q2 | 361,516 | 85,518 | 4.23 | 166 | 1/1 mines reporting |
| 2025 Q3 | 197,365 | 67,874 | 2.91 | 159 | 1/1 mines reporting |
| 2025 Q4 | 377,129 | 67,460 | 5.59 | 161 | 1/1 mines reporting |
| 2026 Q1 | 511,802 | 75,136 | 6.81 | 168 | 1/1 mines reporting |
| 2026 Q2 | 232,557 | 70,646 | 3.29 | 159 | 1/1 mines reporting |
| 2026 Q3 | — | — | — | — | No report |
| 2026 Q4 | — | — | — | — | No report |
Safety and enforcement
2025-01-01 – 2026-10-13
Violations
1415 significant & substantial (S&S)
Accident records
120 records classified as fatality
Proposed penalties · USD
28,895.00126 of 141 violations with amounts
On-site inspection hours
1,761.0012 inspections · 12 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 | 24 | 1 | 5,961.00 | 0 | 0 | 1 | 268.5 |
| 2025-Q2 | 12 | 1 | 3,242.00 | 0 | 0 | 1 | 218.8 |
| 2025-Q3 | 21 | 0 | 3,431.00 | 4 | 0 | 2 | 233.3 |
| 2025-Q4 | 9 | 0 | 1,568.00 | 0 | 0 | 1 | 245.8 |
| 2026-Q1 | 16 | 0 | 1,898.00 | 5 | 0 | 2 | 244.5 |
| 2026-Q2 | 39 | 1 | 6,938.00 | 2 | 0 | 3 | 301.5 |
| 2026-Q3 | 20 | 2 | 5,857.00 | 1 | 0 | 1 | 248.8 |
| 2026-Q4 * | 0 | 0 | — | 0 | 0 | 1 | 0.0 |
Most cited CFR sections
All violations issued in the selected period. Counts combine subsections.
Safety activity
Regular Safety and Health Inspection · 0.0 on-site hours
75.312(c)
77.404(a)
77.1403
77.204 · S&S
77.904 · $151.00 proposed
47.41(a) · $151.00 proposed
SLIP OR FALL OF PERSON · NO DYS AWY FRM WRK,NO RSTR ACT
Accident narrative
IE slipped off the bolter station/platform and fell on EE's left arm, cutting IE's arm that needed 9 stiches.
75.1106-3(a)(2) · $151.00 proposed
75.400 · $245.00 proposed
75.503 · $151.00 proposed
75.1725(a) · $151.00 proposed
75.380(d)(7)(i) · S&S · $2,936.00 proposed
75.333(h) · $151.00 proposed
75.333(c)(2) · $151.00 proposed
75.337(a) · $151.00 proposed
75.403 · $151.00 proposed
75.1403-10(e) · $151.00 proposed
75.1725(a) · $151.00 proposed
75.1600-2(e) · $151.00 proposed
Regular Safety and Health Inspection · 248.8 on-site hours
75.333(c)(2) · $432.00 proposed
75.380(d)(7)(vi) · $432.00 proposed
Compliance Follow-up Inspection · 0.0 on-site hours
Description not reported · $168.00 proposed
Safety sources and definitions
MSHA Violations (issue date), Accidents (accident date), and Inspections (begin date). Snapshot 2026-10-13.
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.
EIA-923 · COAL RECEIPTS
Coal shipments and quality
Receipts reported by power plants and terminals, matched by MSHA mine ID.
Quarterly receipts and quality
| Quarter | Short tons | Heat · Btu/lb | Sulfur % | Ash % | Delivered USD/ton | |
|---|---|---|---|---|---|---|
| 2025-Q3 * | 146,184 | 10,000 | 0.40 | 14.00 | 66.80 | |
| 2025-Q4 | 377,129 | 10,000 | 0.36 | 14.40 | 67.72 | |
| 2026-Q1 | 511,802 | 10,000 | 0.30 | 13.66 | 67.38 | |
| 2026-Q2 | 232,557 | 10,000 | 0.30 | 14.00 | 67.60 | |
| 2026-Q3 * | 22,144 | 10,000 | 0.30 | 14.00 | 67.60 |
| Month / source | Receiving plant / supplier | Short tons | Delivered USD/ton | Heat · Btu/lb | Sulfur % | Ash % | Purchase | Transport |
|---|---|---|---|---|---|---|---|---|
| 2026-07EIA row 12350 · preliminary | Bonanza7790 · UT · BLUE MOUNTAIN ENERGY | 22,144 | 67.60 | 10,000 | 0.30 | 14.00 | ContractBIT | Rail |
| 2026-06EIA row 10406 · preliminary | Bonanza7790 · UT · BLUE MOUNTAIN ENERGY | 148,299 | 67.60 | 10,000 | 0.30 | 14.00 | ContractBIT | Rail |
| 2026-05EIA row 8526 · preliminary | Bonanza7790 · UT · BLUE MOUNTAIN ENERGY | 63,160 | 67.60 | 10,000 | 0.30 | 14.00 | ContractBIT | Rail |
| 2026-04EIA row 6741 · preliminary | Bonanza7790 · UT · BLUE MOUNTAIN ENERGY | 21,098 | 67.60 | 10,000 | 0.30 | 14.00 | ContractBIT | Rail |
| 2026-03EIA row 4923 · preliminary | Bonanza7790 · UT · BLUE MOUNTAIN ENERGY | 195,808 | 67.60 | 10,000 | 0.30 | 14.00 | ContractBIT | Rail |
| 2026-02EIA row 3016 · preliminary | Bonanza7790 · UT · BLUE MOUNTAIN ENERGY | 173,771 | 66.80 | 10,000 | 0.30 | 13.00 | ContractBIT | Rail |
| 2026-01EIA row 1039 · preliminary | Bonanza7790 · UT · BLUE MOUNTAIN ENERGY | 142,223 | 67.80 | 10,000 | 0.30 | 14.00 | ContractBIT | Rail |
| 2025-12EIA row 35127 · final | Bonanza7790 · UT · BLUE MOUNTAIN ENERGY | 150,065 | 68.00 | 10,000 | 0.40 | 15.00 | ContractBIT | Rail |
| 2025-11EIA row 32109 · final | Bonanza7790 · UT · BLUE MOUNTAIN ENERGY | 79,341 | 67.80 | 10,000 | 0.40 | 14.00 | ContractBIT | Rail |
| 2025-10EIA row 29175 · final | Bonanza7790 · UT · BLUE MOUNTAIN ENERGY | 147,723 | 67.40 | 10,000 | 0.30 | 14.00 | ContractBIT | Rail |
| 2025-09EIA row 26116 · final | Bonanza7790 · UT · BLUE MOUNTAIN ENERGY | 146,184 | 66.80 | 10,000 | 0.40 | 14.00 | ContractBIT | Rail |
Delivered cost includes transport and is not mine revenue. Missing prices remain blank. * Fewer than three months are published in the selected quarter. Receipts reflect the months EIA has published; an unfinished quarter is not comparable with a full quarter. Portfolio matches use current ownership.
Coverage, sources and calculations
- Reported coal receipts at EIA-923 power plants/terminals; this is not a census of mine shipments, exports or metallurgical sales.
- Matches use only the published MSHA ID, normalized to seven digits. Unidentified mine origins remain in the source table but are not assigned to a mine.
- Portfolio attribution uses current MSHA ownership, not ownership at the shipment date. Receipts and production can differ because of timing, stocks and coverage.
- Quality means are weighted by positive reported tons with that measurement. Delivered cost uses only rows with published cost, positive heat and positive tons; missing/withheld costs are never zero-filled.
- USD/ton = (cents/MMBtu ÷ 100) × MMBtu/ton. This is plant delivered cost, not mine sales price or revenue.
- Receipt month is as published, including records supplied by annual respondents. Recent months are preliminary and subject to revision. Missing rows do not prove zero shipments.
Imported releases start 2008-01. This window includes 12 published months. EIA releases · Survey instructions
- 2026 · preliminary · EIA923_Schedules_2_3_4_5_M_07_2026_21SEP2026.xlsx · Page 5 Fuel Receipts and Costs
- 2025 · final · EIA923_Schedules_2_3_4_5_M_12_2025_Final.xlsx · Page 5 Fuel Receipts and Costs
EIA ANNUAL COAL REPORT · 2024
Coal prices and estimated revenue
Annual county prices and a production-based allocation of county coal sales.
The estimate assumes each eligible mine receives its county-average price and shares county sales in proportion to production. Actual sales and prices can differ substantially. Unavailable estimates are excluded; this is not a total for the whole portfolio. Annual price data uses a separate window from the MSHA charts.
| Mine / county | Annual production · tons | County FOB · USD/ton | Est. sales · tons | Est. coal revenue · USD | Basis / availability |
|---|---|---|---|---|---|
| Deserado Mine0503505 · Rio Blanco, Colorado | 1,907,363 | — | — | — | County sales or price not published1 eligible mines / 1 sales respondents |
Method, assumptions and source records
- This is an annual county-sales allocation, not reported mine or company revenue. Currency is nominal USD in the source year; quantities are short tons.
- Mine share = same-year annual mine production / eligible same-county production. Estimated sales = published county sales × share. Estimated coal revenue = estimated sales × published county average FOB price.
- The model assumes eligible mines share county sales in proportion to production and receive the county-average price. Matching mine counts is a check, not proof of identical respondents. Mine quality, contracts and sales timing can differ substantially. No statistical confidence interval is implied.
- FOB excludes transport and insurance. EIA-923 delivered costs do not enter this model. No grade premium, state/national fallback, quarterly apportionment or carry-forward to a later year is applied.
- Eligibility follows the source's production threshold and excludes preparation-only and refuse operations. Withheld values, inconsistent county counts and missing/ambiguous locations produce no estimate.
- County sales are published in thousands of tons and prices to cents. Calculations retain precision, but the inputs are rounded and the allocation is approximate.
- Portfolio attribution uses current MSHA ownership, not ownership during the sales year. Covered-mine sums exclude unavailable estimates and must not be read as whole-company revenue. Coverage denominators use the annual EIA mine-production release.
Sales-reporting threshold: 50,000 short tons per mine in 2024. Withheld sales or prices stay unavailable.
EIA Table 30 · county sales and FOB prices · EIA annual mine production · Release index
Annual report released November 19, 2025. Method: county-sales-allocation-v1. JSON and CSV preserve source row numbers and file checksums.
OWNERSHIP
Operator and controller history
Current ownership comes from MSHA Mines. Historical start and end dates come from MSHA Controller and Operator History.
—
Deseret Generation & Transmission Co-operativecontrolsBlue Mountain Energy IncoperatesDeserado Mine
msha-controller-operator-history · controller/operator co-tenure derived on mine 0503505—
Western Fuels Association InccontrolsWestern Fuels-Utah IncoperatesDeserado Mine
msha-controller-operator-history · controller/operator co-tenure derived on mine 0503505Other 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
340 historical accident/injury rows; 1 coded fatalities and 7,657 lost days across the published record.
ACCIDENT + INJURY RECORD36 since 2021
accidentsmine-production-quarterly02 / COMPLIANCEwatch
Violations and penalties
4,497 violation rows across the full record; 601 carry an S&S flag and $2,242,988 appears in current assessed amounts.
ENFORCEMENT ACTIVITY427 since 2021
inspectionsviolationsassessed-violationsorders-107a03 / HEALTHwatch
Occupational health samples
9,565 coal dust; 408 coal quartz; 595 noise. 0 personal-sample rows have a published C/E ratio above 1; 154 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 EXPOSURE11K samples
coal-dust-samplesquartz-samplesnoise-samples04 / PRODUCTIONcontext
Quarterly production and employment
71K employee hours and 159 summed average employees across reported subunits in the latest published quarter.
2026-Q2233K tons
mine-production-quarterlymine-production-yearly05 / LEGALwatch
Contests, conferences and decisions
294 contested-violation rows, 306 civil-penalty docket/decision rows, and 145 conference records linked by issuance number.
POST-ISSUANCE LIFECYCLE745 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 CONTEXT17 linked entities
contractor-production-quarterlycontractor-production-yearlyaccidentsviolations07 / INSPECTIONScontext
Inspections
442 inspection events and 50K published inspection hours across the historical record.
OVERSIGHT COVERAGE38 since 2021
inspectionsviolationsHEALTH SAMPLING
Silica and quartz
Coal quartz, metal/nonmetal personal samples and area samples. Snapshot Oct 13, 2026. 408 silica records across the mine’s published history.
Coal quartz concentration
Quarterly mean · µg/m³ · not-voided samples
— 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 |
|---|---|---|---|---|---|
| 58517084 / lab 2026035281 | Coal quartzQuartz | OCCUPATION CODE NOT FOUNDDESIGNATED AREA | 4 µg/m³1.3% quartz | Not voided | Not reported |
| 58517115 / lab 2026035279 | Coal quartzQuartz | OCCUPATION CODE NOT FOUNDDESIGNATED AREA | 2 µg/m³1.5% quartz | Not voided | Not reported |
| 58516679 / lab 2026034425 | Coal quartzQuartz | CONTINUOUS MINER OPERATORDESIGNATED OCCUPATION | 5 µg/m³2.3% quartz | Not voided | Not reported |
| 58516675 / lab 2026034424 | Coal quartzQuartz | ROOF BOLTER (TWIN HEAD) (RETURN SIDE)NON DESIGNATED OCCUPATION | 28 µg/m³7% quartz | Not voided | Not reported |
| 58542145 / lab 2026021066 | Coal quartzQuartz | MECHANICNON DESIGNATED OCCUPATION | 4 µg/m³1.7% quartz | Not voided | Not reported |
| 58542236 / lab 2026021067 | Coal quartzQuartz | JACK SETTER (LONGWALL)NON DESIGNATED OCCUPATION | 77 µg/m³2.4% quartz | Not voided | Not reported |
| 58542501 / lab 2026021069 | Coal quartzQuartz | LONGWALL OPERATOR (TAILGATE SIDE)DESIGNATED OCCUPATION | 26 µg/m³2.4% quartz | Not voided | Not reported |
| 58486775 / lab 2026015894 | Coal quartzQuartz | CONTINUOUS MINER OPERATORDESIGNATED OCCUPATION | 22 µg/m³6.1% quartz | Not voided | Not reported |
| 58486758 / lab 2026015888 | Coal quartzQuartz | ROOF BOLTER (TWIN HEAD) (RETURN SIDE)NON DESIGNATED OCCUPATION | 74 µg/m³12.3% quartz | Not voided | Not reported |
| 58544915 / lab 2026005435 | Coal quartzQuartz | LONGWALL OPERATOR (TAILGATE SIDE)DESIGNATED OCCUPATION | 14 µg/m³2.4% quartz | Not voided | Not reported |
| 58544910 / lab 2026005441 | Coal quartzQuartz | JACK SETTER (LONGWALL)NON DESIGNATED OCCUPATION | 26 µg/m³4.2% quartz | Not voided | Not reported |
| 58544701 / lab 2026005442 | Coal quartzQuartz | MECHANICNON DESIGNATED OCCUPATION | 6 µg/m³2.6% quartz | Not voided | Not reported |
| 58544703 / lab 2026005449 | Coal quartzQuartz | ROOF BOLTER (TWIN HEAD) (RETURN SIDE)NON DESIGNATED OCCUPATION | 26 µg/m³6.2% quartz | Not voided | Not reported |
| 58544699 / lab 2026005451 | Coal quartzQuartz | CONTINUOUS MINER OPERATORDESIGNATED OCCUPATION | 16 µg/m³5.1% quartz | Not voided | Not reported |
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.
ANNUAL COAL PRODUCTION1,907,363short tons
- LABOR HOURS
- 318,930
- AVG EMPLOYEES
- 167
- SUPPLY REGION
- Uinta Region
- UNION
- United Mine Workers Of America
- OPERATION
- Mine and Preparation Plant
- COMPANY TYPE
- Operating Subsidiary
1 published EIA row aggregated under this MSHA ID. Components remain available in JSON.
30 CFR 75.312Main mine fan examinations and records.1 recent row ↗30 CFR 77.404Machinery and equipment; operation and maintenance.1 recent row ↗30 CFR 77.1403Daily examination of hoisting equipment.1 recent row ↗30 CFR 77.204Openings in surface installations; safeguards.1 recent row ↗30 CFR 77.904Identification of circuit breakers.1 recent row ↗30 CFR 47.41Requirement for container labels.1 recent row ↗30 CFR 75.1106-3Storage of liquefied and nonliquefied compressed gas cylinders; requirements.1 recent row ↗30 CFR 75.400Accumulation of combustible materials.1 recent row ↗
RECENT PUBLIC RECORDS
Recent violations and samples
Latest records retained for inspection; aggregates above use the full source history.
503277975.312(c)Citation
503277877.404(a)Citation
503277777.1403Citation
503277677.204S&S
503277577.904Citation
503277447.41(a)Citation
503277375.1106-3(a)(2)Citation
503277275.400Citation
Coal dust, noise and other contaminants. Silica records above ↑
Coal dustCONTINUOUS MINER OPERATOR
.289 mg/m³Not voided
Coal dustCONTINUOUS MINER OPERATOR
.404 mg/m³Not voided
Coal dustCONTINUOUS MINER OPERATOR
.452 mg/m³Not voided
Coal dustCONTINUOUS MINER OPERATOR
.171 mg/m³Voided · INVALID PRODUCTION
Coal dustCONTINUOUS MINER OPERATOR
.165 mg/m³Voided · INVALID PRODUCTION
Coal dustCONTINUOUS MINER OPERATOR
.416 mg/m³Not voided
Coal dustCONTINUOUS MINER OPERATOR
.378 mg/m³Not voided
Coal dustBULLDOZER OPERATOR
.079 mg/m³Not voided
SOURCE COVERAGE
Reporting dates and coverage
17 datasets contain linked records. Missing datasets are listed below.
DATASETROWSWINDOWSTATUS
Accident, Injuries, and Illnessessafety · contractors340Jan 5, 2000—Aug 20, 2026mine-keyed
Addresses of Recordidentity · logistics1Oct 20, 1996—Oct 20, 1996mine-keyed
Assessed Violationscompliance · legal4,426Feb 7, 2000—Aug 31, 2026mine-keyed
Civil Penalty Dockets and Decisionscompliance · legal306May 21, 2001—Dec 5, 2025mine-keyed
Coal Dust Sampleshealth · safety9,565Jan 18, 2000—Oct 8, 2026mine-keyed
Conferencescompliance · legal145Feb 13, 2000—Mar 16, 2026mine-keyed
Contested Violationscompliance · legal294Jul 15, 2004—May 26, 2026mine-keyed
Contractor Employment and Production — Quarterlycontractors · production · safety3,323Not published—Not publishedentity-linked
Contractor Employment and Production — Yearlycontractors · production · safety656Not published—Not publishedentity-linked
Controller and Operator Historyidentity · compliance2Dec 1, 1979—Oct 16, 1996mine-keyed
Mine Employment and Production — Quarterlyproduction · safety · compliance424Not published—Not publishedmine-keyed
Mine Employment and Production — Yearlyproduction · safety · compliance108Not published—Not publishedmine-keyed
Inspectionssafety · compliance442Jan 5, 2000—Oct 1, 2026mine-keyed
Minesidentity · production · logistics1Not published—Not publishedmine-keyed
Metal and Nonmetal Area Sampleshealth · safety—No published rowsabsent / not applicable
Metal and Nonmetal Personal Health Sampleshealth · safety—No published rowsabsent / not applicable
Noise Sampleshealth · safety · equipment595Aug 9, 2000—Aug 18, 2026mine-keyed
Quartz Samples — Coalhealth · safety408Jan 25, 2000—Aug 25, 2026mine-keyed
Violationscompliance · safety · legal4,497Feb 7, 2000—Sep 17, 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.