Montana Department of Transportation

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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 406-444-6111.

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 2011. They have been constructed in ArcGIS 9.3.1 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.

Downloading Problems/FAQs

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 © 262,473,430
SYSTEMS_BEAVERHEAD.PDF © 16,919,863
SYSTEMS_BIG_HORN.PDF © 3,644,168
SYSTEMS_BLAINE.PDF © 2,088,480
SYSTEMS_BROADWATER.PDF © 4,693,598
SYSTEMS_CARBON.PDF © 2,192,192
SYSTEMS_CARTER.PDF © 1,338,572
SYSTEMS_CASCADE.PDF © 6,258,004
SYSTEMS_CHOUTEAU.PDF © 5,671,533
SYSTEMS_CUSTER.PDF © 2,163,931
SYSTEMS_DANIELS.PDF © 753,761
SYSTEMS_DAWSON.PDF © 1,667,749
SYSTEMS_DEER_LODGE.PDF © 4,471,582
SYSTEMS_FALLON.PDF © 1,024,974
SYSTEMS_FERGUS.PDF © 5,739,931
SYSTEMS_FLATHEAD.PDF © 20,486,549
SYSTEMS_GALLATIN.PDF © 7,715,818
SYSTEMS_GARFIELD.PDF © 3,899,972
SYSTEMS_GLACIER.PDF © 4,506,724
SYSTEMS_GOLDEN_VALLEY.PDF © 875,114
SYSTEMS_GRANITE.PDF © 6,151,349
SYSTEMS_HILL.PDF © 1,133,547
SYSTEMS_JEFFERSON.PDF © 7,266,000
SYSTEMS_JUDITH_BASIN.PDF © 2,648,364
SYSTEMS_LAKE.PDF © 6,809,766
SYSTEMS_LEWIS_AND_CLARK.PDF © 16,201,040
SYSTEMS_LIBERTY.PDF © 814,957
SYSTEMS_LINCOLN.PDF © 8,441,508
SYSTEMS_MADISON.PDF © 8,329,569
SYSTEMS_MCCONE.PDF © 2,252,227
SYSTEMS_MEAGHER.PDF © 6,630,467
SYSTEMS_MINERAL.PDF © 4,294,580
SYSTEMS_MISSOULA.PDF © 9,007,633
SYSTEMS_MUSSELSHELL.PDF © 1,395,510
SYSTEMS_PARK.PDF © 2,507,320
SYSTEMS_PETROLEUM.PDF © 2,301,387
SYSTEMS_PHILLIPS.PDF © 3,381,286
SYSTEMS_PONDERA.PDF © 3,660,980
SYSTEMS_POWDER_RIVER.PDF © 1,513,635
SYSTEMS_POWELL.PDF © 6,319,963
SYSTEMS_PRAIRIE.PDF © 1,564,225
SYSTEMS_RAVALLI.PDF © 7,572,715
SYSTEMS_RICHLAND.PDF © 2,593,542
SYSTEMS_ROOSEVELT.PDF © 3,046,270
SYSTEMS_ROSEBUD.PDF © 4,891,179
SYSTEMS_SANDERS.PDF © 18,885,225
SYSTEMS_SHERIDAN.PDF © 1,280,097
SYSTEMS_SILVER_BOW.PDF © 5,407,094
SYSTEMS_STILLWATER.PDF © 2,185,270
SYSTEMS_SWEET_GRASS.PDF © 1,925,525
SYSTEMS_TETON.PDF © 5,949,240
SYSTEMS_TOOLE.PDF © 1,928,892
SYSTEMS_TREASURE.PDF © 1,022,173
SYSTEMS_VALLEY.PDF © 3,227,550
SYSTEMS_WHEATLAND.PDF © 1,301,519
SYSTEMS_WIBAUX.PDF © 918,261
SYSTEMS_YELLOWSTONE.PDF © 2,903,022