The product of 400 different railroads, Burlington Northern Santa Fe (BNSF) is using GIS to convert all their paper maps collected over 170 years into digital information. Click below to read all about it.
SoCalGIS.org
Southern California Government GIS User Group – Working together locally in GIS
SoCalGIS.org 
Interesting! I loved the picture of the old Leroy lettering set at the end of the article. I spent many an hour making maps that way when I first took a cartography course!