Semorile Building

Historical marker location:

975 First Street, Napa, California

( Marker is on First Street near Main Street, on the right when traveling east.)

Marker installed: 1984

1884-1988.

The Transcontinental Railroad was completed in Promontory Summit, Utah in 1869, but the western terminus of the railroad was actually in Oakland, California. The railroad made it easier and faster to travel across the country, and helped to spur California's economic growth.