GIS (shapefile) boundary of areas damaged by fire following the 1906 earthquake.
This layer was digitized from a raster image of the historic paper map entitled "San Francisco, California, showing the areas destroyed by fire, April 18-21, 1906". The paper map was published by R.J. Waters & Co. in 1906. Scale [ca. 1:21,000]. Raster map downloaded from the Harvard Map Collection, Harvard College Library, Cambridge, Massachusetts: http://ids.lib.harvard.edu/ids/view/7271039?buttons=y
his layer is the data feeding into the San Francisco Green Roofs web map. This map and further information about green roofs in San Francisco can be found at the Planning Department's Green Roofs website: http://www.sf-planning.org/index.aspx?page=3839. If you know of any other green roofs in San Francisco please contact Andrew Perry (Andrew.Perry@sfgov.org) and he will add it to the map.