Mountain Works

USDOT activeAuthority activeCarrier · Interstate
  • USDOT3877154
  • MC1421294
  • LocationRock Springs, WY
  • Fleet5 power units · 3 drivers

Mountain Works (USDOT 3877154, MC-1421294) is an interstate motor carrier based in Rock Springs, Wyoming with 5 power units and 3 drivers reported to FMCSA. Its USDOT number and operating authority are active.

Verification snapshot · FMCSA data as of Nov 9, 2026

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Operating authority

Status from the FMCSA Company Census File, November 9, 2026

DocketAuthority typeStatus
MC-1421294Common carrierActive

First granted on June 7, 2024 · see full authority history.

Insurance

FMCSA legacy licensing records (last updated May 2026); filings may have changed since

  • Liability (BIPD) required$1,000,000
  • Liability (BIPD) on file$1,000,000
  • Cargo insurance required / on fileNo / No
  • Bond required / on fileNo / No

Filings on file

TypeInsurerCoverageEffective
Liability (BIPD) BMC-91XAcuity, A Mutual Insurance Company$1,000,000Feb 28, 2026
Insurance history: 5 past filings
TypeInsurerEffectiveEndedReason
Liability (BIPD)Acuity, A Mutual Insurance CompanyFeb 28, 2026Feb 28, 2026Replaced
Liability (BIPD)Artisan & Truckers Casualty CompanyAug 7, 2025Feb 28, 2026Replaced
Liability (BIPD)Artisan & Truckers Casualty CompanyJul 24, 2025Aug 7, 2025Replaced
Liability (BIPD)Progressive Casualty Insurance CompanyFeb 28, 2025Aug 8, 2025Term / cancl
Liability (BIPD)Artisan & Truckers Casualty CompanyMay 24, 2024Feb 28, 2025Replaced

Process agent (BOC-3)

#1 A $20 Boc-3 Filing LLC, Denver, CO

Inspections and crashes

Last 24 months · FMCSA Vehicle Inspection File and Crash File

No roadside inspections or reportable crashes are on file for this USDOT number in the last 24 months.

FMCSA safety rating: Not rated

Inspection and crash counts come from FMCSA records and are shown as reported. They are not a safety rating. A crash record does not mean the carrier was at fault. FMCSA has not rated a carrier unless a safety rating is listed. For FMCSA’s own data and its explanation, see the FMCSA SAFER Company Snapshot.

Out-of-service rates are calculated by CheckTrucking from inspection records (driver: levels I, II, III, VI; vehicle: levels I, II, V, VI). They are not FMCSA scores.

Authority history

FMCSA licensing records (Motus and legacy L&I) · migration-only status adjustments are not shown

  1. Involuntary revocation — Common carrier authorityDiscontinued revocation on March 5, 2026
  2. Involuntary revocation — Common carrier authorityDiscontinued revocation on August 8, 2025
  3. Involuntary revocation — Common carrier authorityDiscontinued revocation on July 25, 2025
  4. Granted — Common carrier authority
  5. Dismissed — Common carrier authority

Fleet and operations

From the company’s own registration (Form MCS-150), updated April 17, 2025

Power units
5
Trucks
5
Tractors owned
3
Trucks owned
2
Trailers owned
3
Drivers
3
CDL drivers
3
Interstate drivers
3
Miles traveled
1 (2023)
Classification
Private property; Authorized for hire
Hazardous materials
No
USDOT registered
May 4, 2022
Address
Rock Springs, WY

Cargo carried

  • General freight
  • Machinery, large objects
  • Liquids / gases
  • Oilfield equipment

Key facts

  • USDOT number 3877154 was registered on May 4, 2022.
  • Operating authority MC-1421294 was first granted on June 7, 2024.
  • The company last updated its FMCSA registration (Form MCS-150) on April 17, 2025.
  • It reported 1 vehicle miles traveled in 2023.
  • One insurance filing is on file in FMCSA’s legacy licensing records (as of May 2026), including Liability (BIPD) coverage with Acuity, A Mutual Insurance Company.
  • Its process agent filing (BOC-3) is with #1 A $20 Boc-3 Filing LLC.

Other carriers in Rock Springs, WY

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