BNSF ES44C4 7985 tips over Cajon Pass at Summit with a San Bernardino-Alliance Z train, while UP's West Colton-Roseville MWCRV-15 continues to climb in the distance.

One UP and a pair of DRGW SD45's with a Santa Fe crew aboard lead the joint DRGW UP ATSF UT to Kaiser Steel at Fontana unit coal train into Cajon station running on the easier grade North track in... (more)

UP ES44AC 8007 leads a Long Beach bound intermodal down the steep track #3 on BNSF's Cajon Pass.

UP ES44AC 7838 departs the main at Canyon with a West Colton-North Platte manifest in tow.

With 5 units holding it back, UP's ISCLB-15 heads down Cajon Pass.

BNSF ES44DC 7654 passes through Summit on the Cajon Sub with a UPS re-position train from North Bay-San Bernardino.

UP's West Colton, CA - North Platte, NE manifest claws up the main at Canyon, tackling the stiff grade over Cajon Pass.

A quartet of various GE products wearing BNSF's H3 livery leads a Willow Springs-San Bernardino Z train westward, towards the bottom of Cajon Pass.

Clean UP ES44AC 7952 shoves hard on the tailend of a UP Los Angeles, CA-Brooklyn, OR Z train, having just left the north siding switch at Canyon on the Mojave Sub.

A trio of matching UP units lug an 116 car Z train over Cajon Pass, heading down the main track at Canyon.

A clean BNSF ES44C4 4282 brings a Willow Springs-Los Angeles Z train over the summit of Cajon Pass while eastbound Z LACNYC9 16 heads the other way.

BNSF ES44DC 7225 leads a Z train up track 1 while another Z train skips down the steep track 3.

A pair of BNSF C44-9Ws (one still wearing its original ATSF dress) assist on the rear end of a LA bound stack train downhill on Cajon Pass.

A clean BNSF GEVO leads a long stack train downhill through Cajon Pass.

BNSF C44-9W 5077 brings the Z MEMLAC down Cajon Pass while a Z LACNYC heads up.