News & Alerts​

MD iMap 2.0 Server Maintenance Schedule
Regular maintenance of the MD iMap 2.0 servers will occur on the 3rd Tuesday and Wednesday of each month from 7PM to 11PM.

Quick Link | How to Connect to MD iMap Services​
Find instructions on how to add MD iMap services to Desktop, geocode, build your first ArcGIS Online application and more...

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Governor O'Malley and Lt. Governor Brown
GIO Office 
Dedicated to improving the quality of GIS data and services in Maryland.
Support Staff 
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