Montana has 10 scenic byways mapped in the US Department of Transportation data, together covering about 519 miles of road. The longest is the Lake Koocanusa Scenic Byway, running roughly 113 mapped miles. 1 of the state’s routes carry the top All-American Road designation. This interactive map plots every Montana scenic byway — filter by designation, search any town or address, and click a route for its details.
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Scenic Byways
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Miles Mapped
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All-American Roads
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National Scenic Byways
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Route data: US Department of Transportation scenic byway layers (geo.dot.gov). Location search by OpenStreetMap Nominatim. Routes show the mapped corridor and are for reference only – check current conditions before travelling.
How to use the Montana scenic byways map
The map opens framed on Montana. Each line is one scenic byway, coloured by designation. Zoom with the scroll wheel, click any route to see its name, designation, administering agency and mapped length, and use the designation checkboxes or the name filter to focus on the routes you want. Some byways continue across the state line — their full mapped length is shown.
Scenic byways in Montana
Every scenic byway recorded in Montana, with its designation and mapped length. Routes that run into neighbouring states are listed at their full length.
Scenic byway
Designation
Mapped length
Lake Koocanusa Scenic Byway
State Scenic Byway
113 mi
Big Sky Back Country Byway
Local / Other
109 mi
Kings Hill Scenic Byway
Local / Other
71 mi
Missouri Breaks Back Country Byway
Local / Other
60 mi
Big Sheep Creek Back Country Byway
Local / Other
55 mi
Pioneer Mountains Scenic Byway
Local / Other
44 mi
Beartooth Highway
All-American Road
33 mi
St. Regis-Paradise Scenic Byway
Local / Other
21 mi
Garnet Back Country Byway
Local / Other
13 mi
Salmon River Scenic Byway
State Scenic Byway
0 mi
Byway designations in Montana
All-American Road × 1 — the top federal tier, a destination drive in its own right
State Scenic Byway × 2 — designated by the state scenic byway programme
Local / Other × 7 — a locally designated or back-country route
Planning a scenic drive in Montana
Start with the headline routes. Montana’s All-American Road — Beartooth Highway — is the obvious place to begin. Check seasonal conditions before you travel — mountain and back-country byways can close in winter. For overnight stops along the way, see our Montana campgrounds map, and for a different pace try the Montana cycling map.
Route data comes from the US Department of Transportation scenic byway layers at geo.dot.gov, harmonised into a single dataset. It reflects what the transportation agencies publish and may lag local designations. Routes show the mapped corridor and are for planning only — check current road conditions before you travel.
Montana scenic byways: frequently asked questions
How many scenic byways does Montana have?
This map shows 10 scenic byways in Montana, covering about 519 mapped miles.
What is the longest scenic byway in Montana?
The Lake Koocanusa Scenic Byway is the longest, at roughly 113 mapped miles.
Does Montana have any All-American Roads?
Yes — Beartooth Highway carries the All-American Road designation, the highest federal tier.
I'm Daniel O'Donohue, the voice and creator behind The MapScaping Podcast ( A podcast for the geospatial community ). With a professional background as a geospatial specialist, I've spent years harnessing the power of spatial to unravel the complexities of our world, one layer at a time.
