Montana Department of Transportation

Main Content

MDT County Maps

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

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 September 2017. They have been constructed in ArcGIS 10.4.1 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.

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 © 240,577,858
SYSTEMS_BEAVERHEAD.PDF © 16,502,063
SYSTEMS_BIG_HORN.PDF © 7,251,063
SYSTEMS_BLAINE.PDF © 2,307,308
SYSTEMS_BROADWATER.PDF © 3,919,216
SYSTEMS_CARBON.PDF © 2,417,835
SYSTEMS_CARTER.PDF © 2,733,879
SYSTEMS_CASCADE.PDF © 10,636,328
SYSTEMS_CHOUTEAU.PDF © 15,196,946
SYSTEMS_CUSTER.PDF © 2,203,973
SYSTEMS_DANIELS.PDF © 835,763
SYSTEMS_DAWSON.PDF © 1,594,367
SYSTEMS_DEER_LODGE.PDF © 3,559,290
SYSTEMS_FALLON.PDF © 1,130,872
SYSTEMS_FERGUS.PDF © 5,765,811
SYSTEMS_FLATHEAD.PDF © 19,093,047
SYSTEMS_GALLATIN.PDF © 7,208,691
SYSTEMS_GARFIELD.PDF © 3,972,389
SYSTEMS_GLACIER.PDF © 4,045,387
SYSTEMS_GOLDEN_VALLEY.PDF © 886,642
SYSTEMS_GRANITE.PDF © 4,325,564
SYSTEMS_HILL.PDF © 1,061,248
SYSTEMS_JEFFERSON.PDF © 5,386,143
SYSTEMS_JUDITH_BASIN.PDF © 2,279,778
SYSTEMS_LAKE.PDF © 5,869,264
SYSTEMS_LEWIS_AND_CLARK.PDF © 15,268,653
SYSTEMS_LIBERTY.PDF © 940,532
SYSTEMS_LINCOLN.PDF © 7,987,174
SYSTEMS_MADISON.PDF © 7,007,293
SYSTEMS_MCCONE.PDF © 2,398,375
SYSTEMS_MEAGHER.PDF © 5,615,519
SYSTEMS_MINERAL.PDF © 4,056,279
SYSTEMS_MISSOULA.PDF © 8,308,281
SYSTEMS_MUSSELSHELL.PDF © 1,607,134
SYSTEMS_PARK.PDF © 2,058,966
SYSTEMS_PETROLEUM.PDF © 2,212,773
SYSTEMS_PHILLIPS.PDF © 3,472,524
SYSTEMS_PONDERA.PDF © 3,510,855
SYSTEMS_POWDER_RIVER.PDF © 1,278,073
SYSTEMS_POWELL.PDF © 5,284,033
SYSTEMS_PRAIRIE.PDF © 1,711,986
SYSTEMS_RAVALLI.PDF © 6,586,637
SYSTEMS_RICHLAND.PDF © 2,614,998
SYSTEMS_ROOSEVELT.PDF © 3,390,370
SYSTEMS_ROSEBUD.PDF © 5,661,743
SYSTEMS_SANDERS.PDF © 16,872,025
SYSTEMS_SHERIDAN.PDF © 1,389,426
SYSTEMS_SILVER_BOW.PDF © 4,538,240
SYSTEMS_STILLWATER.PDF © 2,161,103
SYSTEMS_SWEET_GRASS.PDF © 1,470,051
SYSTEMS_TETON.PDF © 5,475,144
SYSTEMS_TOOLE.PDF © 2,056,475
SYSTEMS_TREASURE.PDF © 1,082,532
SYSTEMS_VALLEY.PDF © 3,473,810
SYSTEMS_WHEATLAND.PDF © 1,141,247
SYSTEMS_WIBAUX.PDF © 1,114,260
SYSTEMS_YELLOWSTONE.PDF © 2,927,875