N.Y. & B. R.R. btw Carmel and Mahopac.

Deep Cut, Bitter Creek, near Green River

Tunnel No. 2, head of Echo Canon

Federal fort no. 19 new lines, on the east side of the city - Georgia R.R. Built after occupation of the city, Nov. 1864, Atlanta, Ga.

End of track, on Humboldt Plains

Constructing snow cover. Scene near the summit

Donner Lake, Tunnels No. 7 and 8 from Summit Tunnel, eastern summit in distance

Construction train, west of Hays City, Kansas.

Construction train of the U.P.R.R.

Westward the Monarch Capital makes its way.

The first train to cross ... bridge June 5th 1897, Wrightsville 11:32 AM.

Laying the Nicolson pavement in Mercer St, New York.

Paving of Lenox Ave. north of Central Park.

Paving of Lenox Ave. no. of Central Park.

N.Y. & B. R.R. btw Carmel and Mahopac.

Wortendyke Station.

Building Mt. Washington R.R.

Track repairer,Mt. Washington R.R.

Track repairer, coming down Jacob's Ladder, Mt. Washington Rail Road.

View of a railroad construction site, Davenport, Iowa.

Railroad workers at a railroad construction area.

Snow sheds, Union Pacific R.R. - Exterior.

Long Ravine Bridge, C.P.R.R. California.

Interior of snow shed, Summit Station, Sierra Nevada Mountains, C.P.R.R.

Central Pacific. Cisco, Calif.

Central Pacific, Colfax, California.

Section of the snow sheds around Donner Peak.

Summit, C.P.R.R., Sierras.

Colfax.