A heavily powered eastbound manifest takes its time moving downhill at Bison, Montana. The mountains in the scene are actually in the southern part of Glacier National Park.

An eastbound stack train pulls out onto the high plains of Montana after coming down off Marias Pass. The altitude here is about 5000 feet.

A short but steep climb up a rocky ridge reveals a nice vantage point to catch this eastbounder at Bison siding. The mountain in the background is Calf Robe Mountain (8000 feet altitude).

This high priority eastbounder has just passed the Marias Pass summit and is rolling downhill with the dynamic brakes beginning to howl.

The jagged mountains of Glacier National Park fill the background behind an eastbound Burlington Northern Santa Fe stack train at Bison, Montana, on the morning of June 4, 2002.

Snow dusts the mountains of Glacier National Park on Marias Pass on the autumn day of October 8, 2018, as a westbound BNSF grain train approaches Bison, Montana.

Eastbound mixed freight.

Surrounded by a winter wonderland on the southern border of Glacier National Park, Amtrak’s eastbound Empire Builder has just summited Marias Pass and approaches Bison, Montana, on a snowy March 3... (more)

It can’t decide it whether it’s winter or fall as snow mixes with bright yellow trees on Marias Pass as a westbound BNSF grain train approaches the east switch at Bison, Montana, on October 8, 201... (more)

BNSF 4755 leads a westbound oil train as it passes through Bison Siding on BNSF's Hi-Line Subdivision.

Builder at Bison
Amtrak’s eastbound Empire Builder crosses the big fill just east of Bison, Montana, during a snowy crossing of Marias Pass on December 21, 1998. Three GE P40DC “Genesis... (more)

BNSF 6300 West climbs the east slope of Marias Pass.

An eastbound grain train rolls through Bison, Montana in Glacier National Park.

Two BN SD40-2 and a Soo Line visitor. Make there way over Marias pass on the high line.

An A-B-A lashup on the Burlington Northern EMD style, in an era that's hard to do. I believe B unit 7500 is one of a kind, it's a SD40-2 wreak rebuild.