1890 Sanborn Fire Insurance Map showing the existing buildings at the time at the 12th & Broadway area.
The maps were created by the D.A. Sanborn Company, founded in New York in 1867. They are a valuable resource for research in architecture, site assessment (like the History Colorado project), genealogy and urban history.
Try finding your neighborhood at this link to the UCB Map Library:
http://ucblibraries.colorado.edu/map/sanborn.htm
