Mapping Maryland Projects

Statewide County Boundary Survey Project

Maryland State Geographic Information Committee The State GIO and members of the Maryland State Geographic Information Committee developed the material on this web site to verify county boundaries. The purpose of posting this material here is to allow interested parties to review the material and provide feedback. Comments can be emailed to

Read the Full Report SHA Boundary Review Version 2
Research Document Download File
Comments Received as of September 30, 2010
County Boundary Presentation, October 20, 2010
SHA County Boundary Review, February 2, 2011
Maryland County and State Boundary Review: Bibliographical Essay and Bibliography

Historic Aerial Photos Project

A committee of state and local government officials and private sector consultants are collaborating on an effort to inventory and make accessible historic aerial photos and other GIS data. You can follow the progress of this effort here.

Scanning and Preserving Maryland Historic Aerial Photos

Meeting on December 15, 2010

   List of Attendees

Meeting on August 18, 2011


To facilitate this inventory effort, the committee has developed a survey. The results can be found here:
Summary of Survey Results

Related Links

Beneath the Underground Railroad in Maryland

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