Montana Base Map Service Center


The Base Map Service Center (BMSC) is a Bureau in the Department of Administration's Information Technology Services Division.

The mission of the Montana Base Map Service Center is to develop, support, deliver and promote enterprise geographic data and the spatial technologies to all levels of government and the public.



Base Map Service Center outreach in Ravalli County.


What's New

Montana Administrative Boundary Workshops - Billings/Missoula: January 25/26, 2010.

Presented by the BMSC in coordination with the Montana Census and Economic Info Center and the U.S. Census Bureau.

Cadastral Data now available in shapefile format

Reservations and Incorporated Cities/Towns GIS data now available

New ArcGIS Server Map Services Governmental Units data: School Districts & Counties

Learn How to Adjust Data to the GCDB