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Legacy Base Map Files

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Legacy base map files are available for all of Missoula County. Updates and maintenance for these files ceased in 2013.  To obtain the latest parcel/cadastral data, visit the Property Information System or download data from NextCloud.

These files are each a single township in size (36 square miles) except for the Missoula Urban Area located in Township 13 North, Range 19 West. This township is mapped by Public Land Survey System (PLSS) sections.  

Available File Formats 

  • AutoCAD DWG & DXF

Digital map data is available for download from Nextcloud. The base map files are in AutoCAD R14(c) format. All files are compressed using PKWARE's PKZIP program.

Files with the .EXE extension contain data in AutoCAD .DWG format. Files with the .ZIP extension contain data in AutoCAD .DXF format created using AutoCAD's DXFOUT command.

The base map data was projected in North American Datum of 1927 (NAD27) format up through July 28, 2000. As of July 31, 2000 the data was projected in North American Datum of 1983 (NAD83) format.

  • AutoCAD DWF

These base map files contain the same information as the AutoCAD drawings and can be viewed with a free Autodesk Design Review program.  Multiple desktop and mobile options are available.

To view detailed maps, choose your area of interest:

To download or open a file, click the desired location on the map or choose from the table of locations.  

DWF files may also be downloaded from Nextcloud.