MRL SD70ACe 4305 splits the signals at East Belgrade with the ML in tow.

The ML cools its heels in the siding at Bozeman waiting for a helper set to come over Bozeman Pass to give them a shove.

MRL's "ML" flies through East Belgrade behind a pair of SD70ACes.

Missoula-Laurel freight departs Manhattan behind a pair of MRL SD70ACes.

MRL SD70ACes 4305 and 4308 climb out of the valley at Logan, MT with 91 cars of mixed freight for Laurel, MT in tow.

Pulled out of helper service, a greasy 4305 leads the 4407 as the ML rips through the Reed Point curves towards Laurel.

Montana Rail Link EMD SD70ACe locomotives used in helper service over Mullan Pass accumulated a ton of grime and soot working through confining Mullan Tunnel under the Continental Divide. MRL wash... (more)

Filthy!
A Montana Rail Link helper set led by brand-new EMD SD70ACe No. 4305 coasts through Austin, Montana, heading eastbound back to Helena after helping a train up Mullan Pass. The s... (more)

The helpers have moved past the west switch of the pocket track and the crew member is about to throw the switch for the siding. The front part of the train is just beyond the helpers. A little sn... (more)

A quartet of Montana Rail Link SD70ACes get a roll on it leaving Austin siding to return to Helena after helping a train over Mullan Pass. In the background a westbound grain train is being helped... (more)

Various MRL power idles at the west end of the shops in Helena, MT. From left to right: Unassigned MRL SD40-2XR 256, Helper #3 with MRL SD70ACes 4305, 4301, 4307 and 4311 and GP9 109. The helper s... (more)

Helper #3 starts to dig into the eastern edge of MRL's Mullan Pass in the middle of a heavy grain train.

Consisting of MRL SD70ACes 4311, 4307, 4301 and 4305, Helena Helper #3 drifts down Mullan Pass for their next assignment.

Two sets of four Montana Rail Link EMD SD70ACes, along with a couple of SD45s and yard switcher GP9 No. 120 gather at the engine facility at Helena, Montana, on May 23, 2011. The SD70ACes are used... (more)

With a pair of MRL SD70ACe Helpers on the point, led by MRL 4305, a westbound BNSF freight starts the torturous climb up the East Slope of Mullan Pass.