Judging by the former Chicago gallery cars (all but the cab car), maybe this is the Chicago & Southeastern...

Caltrain MP36PH-3C #928 brings train 138 to a stop at the Sunnyvale Station.

Arriving at Gaithersburg

Slowing for its station stop

Blizzard-like conditions didn't keep the trains from running. A southbound MARC passes workers trying their best to keep platforms clear.

A UTA FrontRunner commute departs Provo for Salt Lake City, Ogden and points north. Aug. 29, 2014

Well-powered and heading for Manassas

A UTA FrontRunner commute prepares to depart Provo Central Station for Salt Lake City, Ogden and points north on Aug. 29, 2014.

"Movin' Along:" With the new passengers tucked away, MARC train P874 throttles up at Point of Rocks, MD as it hustles eastbound towards Washington D.C.

See more photos on my F... (more)

"Transitions:" As the night turns to day, MARC train P892 transitions from the Old Main Line to the Metropolitan Subdivision at Point of Rock, pushing morning commuters from Frederic... (more)

A UTA FrontRunner commute departs Salt Lake Central Station on Aug. 14, 2014.