MDT County Maps
Significant Route Changes associated with the Expanded NHS and decennial Urban Boundary Review have been updated in MDT's database but are not reflected in these maps. We are currently working on updating all applicable maps. This web map shows all the changes. Please for any questions at 406-444-6103.
The County Sheets listed below are current as of February 22nd, 2010. They have been constructed in ArcGIS 9.3.1 using ArcMap. Esri, Inc.
- These copyrighted© planimetric general highway county maps show roads on a land grid of township,range and section lines. MDT departmental route id's are indicated with a beginning label and ending label, and MDT corridor id�s are added to some routes where possible. These maps do not imply roadway ownership or maintenance responsibility. Cultural features adjacent to roads are displayed by symbols. The maps also indicate managed areas by owner, lakes, reservoirs, streams, canals/ditches, and, railroads.
- City areas are blocked out on these maps but they are available in the Urban maps, City Systems maps and Unincorporated Town Maps.
The County System Routes maps listed below are current as of March 2014. They have been constructed in ArcGIS 10.2 Using ArcMap. Esri, Inc.
- These maps are updated annually to show current On System Routes. On System Routes are comprised of the Interstate NHS, Non-Interstate NHS, State Primary, and State Secondary routes.
You are able to interact with the map by turning on and off layers in the pdf. After you open the PDF go to View -> Navigation Panels -> Layers. Then you should see the layers in the map (Click the plus sign to ungroup certain layers) you can then turn them on and off by clicking the eye button.
The index map shows the arrangement and the number of map sheets for each county. Each sheet is hyperlinked to the appropriate map sheet.