Montana Department of Transportation

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MDT County Maps

Always up to date live Interactive Maps can be found here: Highway Systems | Functional Class

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.

county map image

The index map shows the arrangement and the number of map sheets for each county. Each sheet is hyperlinked to the appropriate map sheet.

County SheetsFile Size
BEAV_CS.PDF © 18,829,963
BIGH_CS.PDF © 13,813,149
BLAI_CS.PDF © 10,436,862
BROA_CS.PDF © 6,569,424
CARB_CS.PDF © 9,768,980
CART_CS.PDF © 7,946,571
CASC_CS.PDF © 10,555,405
CHOU_CS.PDF © 14,292,269
CUST_CS.PDF © 9,202,564
DANI_CS.PDF © 2,109,991
DAWS_CS.PDF © 11,467,414
DEER_CS.PDF © 5,102,894
FALL_CS.PDF © 3,128,261
FERG_CS.PDF © 14,026,459
FLAT_CS.PDF © 28,975,963
GALL_CS.PDF © 10,933,383
GARF_CS.PDF © 39,457,475
GLAC_CS.PDF © 11,995,286
GOLD_CS.PDF © 2,712,206
GRAN_CS.PDF © 9,051,709
HILL_CS.PDF © 8,158,055
JEFF_CS.PDF © 10,575,033
JUDI_CS.PDF © 6,114,265
LAKE_CS.PDF © 9,581,266
LEWI_CS.PDF © 15,854,014
LIBE_CS.PDF © 4,241,482
LINC_CS.PDF © 15,249,138
MADI_CS.PDF © 15,180,775
MCCO_CS.PDF © 24,389,096
MEAG_CS.PDF © 7,248,024
MINE_CS.PDF © 8,123,347
MISS_CS.PDF © 13,433,440
MUSS_CS.PDF © 5,618,785
PARK_CS.PDF © 9,693,875
PETR_CS.PDF © 10,007,323
PHIL_CS.PDF © 22,483,897
POND_CS.PDF © 8,888,739
POWD_CS.PDF © 8,701,164
POWE_CS.PDF © 6,261,944
PRAI_CS.PDF © 6,574,614
RAVA_CS.PDF © 11,010,687
RICH_CS.PDF © 11,046,691
ROOS_CS.PDF © 11,084,155
ROSE_CS.PDF © 11,643,047
SAND_CS.PDF © 16,558,163
SHER_CS.PDF © 4,688,027
SILV_CS.PDF © 5,744,650
STIL_CS.PDF © 6,807,228
SWEE_CS.PDF © 7,169,694
TETO_CS.PDF © 8,928,844
TOOL_CS.PDF © 8,043,366
TREA_CS.PDF © 5,093,551
VALL_CS.PDF © 37,768,534
WHEA_CS.PDF © 3,242,045
WIBA_CS.PDF © 3,773,291
YELL_CS.PDF © 11,066,283
County System RoutesFile Size
1_SYSTEMS_COUNTY.PDF © 241,929,705
SYSTEMS_BEAVERHEAD.PDF © 16,449,056
SYSTEMS_BIG_HORN.PDF © 3,821,696
SYSTEMS_BLAINE.PDF © 2,230,894
SYSTEMS_BROADWATER.PDF © 3,844,578
SYSTEMS_CARBON.PDF © 2,343,552
SYSTEMS_CARTER.PDF © 1,463,165
SYSTEMS_CASCADE.PDF © 5,379,520
SYSTEMS_CHOUTEAU.PDF © 5,163,022
SYSTEMS_CUSTER.PDF © 2,239,155
SYSTEMS_DANIELS.PDF © 877,470
SYSTEMS_DAWSON.PDF © 1,582,327
SYSTEMS_DEER_LODGE.PDF © 3,700,281
SYSTEMS_FALLON.PDF © 1,158,853
SYSTEMS_FERGUS.PDF © 6,000,032
SYSTEMS_FLATHEAD.PDF © 19,294,260
SYSTEMS_GALLATIN.PDF © 7,200,931
SYSTEMS_GARFIELD.PDF © 4,107,475
SYSTEMS_GLACIER.PDF © 4,299,831
SYSTEMS_GOLDEN_VALLEY.PDF © 893,598
SYSTEMS_GRANITE.PDF © 4,445,465
SYSTEMS_HILL.PDF © 1,078,398
SYSTEMS_JEFFERSON.PDF © 5,452,618
SYSTEMS_JUDITH_BASIN.PDF © 2,198,547
SYSTEMS_LAKE.PDF © 5,794,145
SYSTEMS_LEWIS_AND_CLARK.PDF © 15,185,649
SYSTEMS_LIBERTY.PDF © 865,853
SYSTEMS_LINCOLN.PDF © 7,903,955
SYSTEMS_MADISON.PDF © 6,929,999
SYSTEMS_MCCONE.PDF © 2,324,715
SYSTEMS_MEAGHER.PDF © 5,539,877
SYSTEMS_MINERAL.PDF © 3,983,229
SYSTEMS_MISSOULA.PDF © 8,234,793
SYSTEMS_MUSSELSHELL.PDF © 1,539,112
SYSTEMS_PARK.PDF © 1,986,351
SYSTEMS_PETROLEUM.PDF © 2,130,508
SYSTEMS_PHILLIPS.PDF © 3,398,625
SYSTEMS_PONDERA.PDF © 3,437,579
SYSTEMS_POWDER_RIVER.PDF © 1,206,717
SYSTEMS_POWELL.PDF © 5,206,374
SYSTEMS_PRAIRIE.PDF © 1,648,792
SYSTEMS_RAVALLI.PDF © 6,483,839
SYSTEMS_RICHLAND.PDF © 2,539,333
SYSTEMS_ROOSEVELT.PDF © 3,314,387
SYSTEMS_ROSEBUD.PDF © 5,581,852
SYSTEMS_SANDERS.PDF © 16,793,918
SYSTEMS_SHERIDAN.PDF © 1,353,604
SYSTEMS_SILVER_BOW.PDF © 4,460,414
SYSTEMS_STILLWATER.PDF © 2,085,558
SYSTEMS_SWEET_GRASS.PDF © 1,394,528
SYSTEMS_TETON.PDF © 5,416,955
SYSTEMS_TOOLE.PDF © 1,970,519
SYSTEMS_TREASURE.PDF © 1,008,774
SYSTEMS_VALLEY.PDF © 3,397,510
SYSTEMS_WHEATLAND.PDF © 1,067,916
SYSTEMS_WIBAUX.PDF © 1,039,503
SYSTEMS_YELLOWSTONE.PDF © 2,854,471