Provides digital access to thousands of large-scale maps of American towns and cities, searchable by address and GPS coordinates.Sanborn® fire insurance maps are the most frequently consulted maps in libraries. The maps chart the growth and development of thousands of America towns and cities across a century. Because of this scope, urban specialists, social historians, architects, geographers, genealogists, local historians, and others will find the maps a valuable tool.ProQuest® Sanborn Maps Geo Edition™ allows for increased discovery and greater ease of use by making maps searchable by address and location. Examining temporal (time) changes is made even easier with tools that layer maps from different years on top of each other and over modern street, satellite, and hybrid layers via a Google™ map interface.