ProQuest Sanborn Maps Geo Edition
Sanborn Fire Insurance maps with GIS information that enables users to locate data by address or geographic coordinates. It also allows users to layer maps from different years on top of each other and over modern street, satellite, and hybrid layers using an integrated map API or by importing into GIS tools. Covers: Baltimore, Maryland; Boston, Massachusetts; Charlotte, North Carolina; Chicago, Illinois; Detroit, Michigan; Los Angeles, California; Miami, Florida; New York, New York; Newark, New Jersey; Philadelphia, Pennsylvania; Richmond, Virginia; Seattle, Washington. Time frame varies by the city.