:::*'''''Henness Pass Road''''' 1850 branched off the Truckee Trail at [http://en.wikipedia.org/wiki/Verdi,_Nevada Verdi, Nevada] headed for [http://en.wikipedia.org/wiki/Camptonville,_California Camptonville] and steamboat service at [http://en.wikipedia.org/wiki/Marysville,_California Marysville, California]. In 1860 it became a major route to the [http://en.wikipedia.org/wiki/Comstock_Lode Comstock Lode silver mines] in [[Nevada Genealogy|Nevada]].
:*'''''[[Central Pacific Railroad]]''''' reached Nevada County in 1866. Tracks completed 1869 from [[Ogden, Utah]] to [http://en.wikipedia.org/wiki/Sacramento,_California Sacramento, California]<ref>Wikipedia contributors, "First Transcontinental Railroad" in ''Wikipedia: the Free Encyclopedia'' at http://en.wikipedia.org/wiki/First_Transcontinental_Railroad (accessed 2 August 2011).</ref>
==== Military History and Records ====