Fire Insurance Maps (Sanborn Maps) date back to 1866, show building footprints and provide facts about construction materials, building addresses, site uses, location of storage tanks (UST/AST), and chemicals/ solvents used in any manufacturing processes.

Did you know that you can access Sanborn Maps online for FREE? Many of the libraries have posted public domain Sanborn Maps online for downloading.

FREE Sanborn Maps™

Updated List of FREE Sanborn Maps Links

Reprinted with permission from Environmental Data Resources Inc. & Sanborn Map Library, LLC.