Livingston Helper #2 shoves a loaded diesel train over Bozeman Pass' summit at West End.

With a solid set of EMD power up front, a loaded coal train puts on a show exiting the Bozeman Tunnel at West End, MT.

Wildflowers mingle with the grasses of Winston Hill while a BNSF grain train struggles upgrade east of Winston, Montana, on the afternoon of July 4, 2018.

MRL SD40-2XRs 255 and 250 blast through Big Timber with a short train for Bozeman in tow.

MRL SD40-2XRs 255 and 250 hustle a short Laurel-Bozeman turn into Livingston.

BNSF ES44DC 7241 leads a very low priority (it's already 10 days old!) S SEALPC through Teton and into Shelby.

After meeting counterpart Z CHCPTL7 16 (seen in the distance), Z PTLCHC7 17 departs Main #2 at Shelby behind BNSF ES44AC 5730.

Amtrak's Seattle, WA-Chicago, IL "Empire Builder" makes a station stop and crew change at Shelby, MT.

BUTTE MT Sept 26 1978 — Burlington Northern GP30 2215 is idled by a nationwide railroad strike. EMD built the unit in May 1963 as Great Northern 3015 and delivered it in Simple Empire Builder pa... (more)

Amtrak's Seattle, WA-Chicago, IL "Empire Builder" glides downhill into Shelby, MT.

Amtrak's Seattle, WA-Chicago, IL "Empire Builder" gathers speed after departing from a station stop/crew change at Shelby, MT.

CN ES44DC 2944 is a bit lost, seen here leading an empty BNSF grain train east away from Shelby, MT.

BNSF C44-9W 4642 leads a baretable train west on the Hi Line Sub at Summit.

BNSF C44-9W 4642 leads a baretable train west on the Hi Line Sub at Bison.

Amtrak #7, The Empire Builder, departs Essex, MT after a brief stop at the platform.