<Li> December 3, 1866: Central Pacific opened 92 miles (148 km) to Cisco, California . </Li> <Ul> <Li> August 28, 1867: The Sierra Nevadas were finally "conquered" by the Central Pacific Railroad, after almost five years of sustained construction effort, with the successful completion at Donner Pass of its 1,659 - foot (506 m) Tunnel #6 (a.k.a. the "Summit Tunnel"). </Li> <Li> December 1, 1867: Central Pacific opened to Summit of the Sierra Nevada, 105 miles (169 km). </Li> </Ul> <Li> August 28, 1867: The Sierra Nevadas were finally "conquered" by the Central Pacific Railroad, after almost five years of sustained construction effort, with the successful completion at Donner Pass of its 1,659 - foot (506 m) Tunnel #6 (a.k.a. the "Summit Tunnel"). </Li> <Li> December 1, 1867: Central Pacific opened to Summit of the Sierra Nevada, 105 miles (169 km). </Li>

Where did the union and central pacific railroad lines meet in 1869