While construction on Sierra tunnels delayed Central Pacific, advance forces at Truckee began building forty miles of track east and west of Truckee, moving supplies by wagon and sled. Summit Tunnel was opened in December, 1867. The line reached Truckee April 3, 1868, the Sierra was conquered. Rails reached Reno June 19 and construction advanced eastward one mile daily toward the meeting with Union Pacific at Promontory May 10, 1869, to complete the first transcontinental railroad.

California Registered Historic Landmark No. 780-6

Plaque placed by the Sate Department of Parks and Recreation in cooperation with the Conference of California Historical Societies and the Nevada County and Truckee-Donner Historical Societies. May 9, 1969.