Train passing through a railroad snow shed and onto a tressel in the mountains at Cisco, ca.1910 

Southern Pacific Railroad train coming out of snow sheds in the mountains near Cisco, ca.1909 

Interior view of the snow sheds of Southern Pacific (or Union Pacific?) Railroad at Cisco, 1909 

Southern Pacific "Cab Forward" steam locomotive coming out of Snow Shed 10, heading West onto Butte Canyon Trestle, ca.1910 

Southern Pacific train coming out of Snow Shed 10, heading West onto Butte Canyon Trestle, ca.1910 

Fire patrol lookout to protect Central Pacific Railroad snow sheds on Red Mountain at Cisco, ca.1910 

Painting of Marshall's Pass over the Rocky Mountains, 1890-1930 

Three mountaineers making their way up a snow pass, [s.d.] 

Railroad trestle over the Santa Margarita River, ca.1910 

Close-up view of a snow-covered mountain pass, possibly in Lost Bear Meadow, [s.d.] 

Steam locomotive passing in front of the Southern Pacific Railroad Depot in Stockton, ca.1900 

Automobile below a trestle of the old Central Pacific Railway Crossing near Highway Forty, 1936 

Atchison, Topeka and Santa Fe Railroad crossing a trestle in Arizona, ca.1895 

Rae Peak and Rae Lake in the high Sierra Nevada mountains, Fresno, California, ca.1910 

Panoramic view of Cahuenga Pass, looking north from Melrose, Hollywood, ca.1915 

Snow-capped mountain ridges, [s.d.] 

Desert Station of Southern Pacific Railroad at Palmdale showing a train in station, ca.1895 

Railroad trestle over a dry river bed, ca.1910 

Railroad track on east side of the Salton Sea, showing a trestle in the distance, ca.1910 

Road and a railroad track passing under a bridge in a mountainous area, [s.d.]