Steam shovel at work.

View of railroad construction from hill.

Jenks & Rice's hotel--from R. R. tracks.

Jenks & Rice's hotel--from R. R. tracks.

Views of a covered bridge over the Deerfield River.

Jenks & Rice's hotel--across the Deerfield.

Miners descending the west shaft.

Near view of central shaft building, eng'rs at work.

Hawkins' well--no. 4.

Hawkins' well--no. 4.

Compressor building and dump.

Machine shop.

Blacksmith shop, &c., east end.

Blacksmith shop, &c., east end.

East end--miners going in.

East end--miners going in.

East end--near view.

West entrance of arch looking out.

West entrance of arch.

West entrance of arch.

View from Rock Arbor--looking down str.

West portal--showing archway.

West portal--entrance.

West portal--entrance.

Fearful bridge.

Workers at mouth of tunnel.

Hoosac Tunnel--interior view.

Hoosac Tunnel--interior view, showing drill carriage and pipes.

The "N.C.Munson," first engine through Hoosac tunnel, February 9th, 1875.

Deerfield river, looking up.