Located at Stanford University, the Spatial History Project seeks to bring “together scholars working on projects at the intersection of geography and history using Geographic Information Systems (GIS) in their research.”  The projects listed marry geospatial technologies with historical research.  Use the Google Earth to journey along with Alfred A. Hart, who between 1864 to 1869,took 364 pictures along the line of the Central Pacific Railroad.  Click on the photos along the trail route to see both historical and modern day photos of sites he photographed.  Or view a dynamic timeline of botany samples as they were collected across California between 1848 and 2008.

Visit: Spatial History Project

Botanizing California, 1840-2008 from The Spatial History Project at Stanford University