Extend railroad tracks from 1893 map

Extend railroad tracks from 1892 map

Extend railroad tracks from 1889 map

Add start date for railroad tracks: Western Pacific (1908~) and Southern Pacific (1869). Possibly some segments were in place earlier

Add buildings from historical walking tour guide

Extend railroad tracks; tag parallel railroad tracks with source/start date to disambiguate

Add railroad tracks from 1897 map

Start date of railroad tracks partially into Niles Canyon

Update railroad track start date/end date through Livermore

Add railroad bridge, move tracks slightly to align with bridge and to avoid crossing a building

Add train depot

Update railroad track start date

Extend railroad tracks from 1891 map

Extend railroad tracks from 1894 map

Add start date for railroad tracks

Update start date for railroad tracks

Sort out railroad bridges entering across Sacramento River

Extend railroad tracks from 1907 maps

Extend railroad tracks from 1908 map

Add settlements from 1945 maps