Mountain Line Inc (DOT# 3558740) – FMCSA Carrier Profile

DOT# 3558740MC# 1194478● Active
Updated: 2026-03-09

Mountain Line Inc is a registered motor carrier with the FMCSA under USDOT number 3558740. The company operates from Rock Springs, WY and maintains an active operating status with 67 power units and 67 drivers on record.

Safety Rating

FMCSA Safety Rating
Not Rated

No formal safety rating has been assigned to Mountain Line Inc by the FMCSA. View official FMCSA record →

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Company Information

Address1948 Edgar St, Rock Springs, WY, 82901
Phone(307) 289-4203
Entity TypeAuthorized For Hire
OperationInterstate
Power Units67
Drivers67
MCS-150 FiledFebruary 13, 2026
Annual Mileage6,167,467 mi (2026)
All carriers in WyomingCarriers in Rock Springs, WY

Inspection Summary

All-time Inspections
All-time
108
Total
27
OOS
4
Driver OOS
23
Vehicle OOS
OOS Rate25.00%
The out-of-service (OOS) rate represents the percentage of inspections that resulted in the carrier being placed out of service.

Crash History

Crash Records
All-time
3
Total
0
Fatal
1
Injuries
0
Tow-Away

BASICS Safety Scores

BASICS Scores
Higher = more risk · FMCSA Behavior Analysis and Safety Improvement Categories
4.6
Unsafe Driving
0.1
HOS Compliance
0.1
Driver Fitness
0.0
Controlled Substances
6.6
Vehicle Maintenance
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Frequently Asked Questions

What is USDOT Number 3558740?
USDOT number 3558740 is assigned to Mountain Line Inc, an active motor carrier registered with the FMCSA, based in Rock Springs, WY.
How many inspections has Mountain Line Inc had?
Mountain Line Inc has recorded 108 total inspections with 27 out-of-service orders, representing an OOS rate of 25.00%.
Where is Mountain Line Inc located?
Mountain Line Inc is headquartered at 1948 Edgar St, Rock Springs, WY 82901.

Data sourced from the FMCSA Open Data Portal. Updated monthly. DOT# 3558740 · Last updated: 2026-03-09. View official FMCSA record →