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Complete the ultimate western overland loop with the official Montana Backcountry Discovery Route (MTBDR) Map by Butler Maps. Slicing through the heart of "Big Sky Country," this essential multi-day adventure motorcycle map layout charts a massive 900-mile journey from Island Park, Idaho, all the way north to the Canadian border. Serving as the final, critical link in the western BDR network, this map is the definitive physical supplement to your digital GPS tracks, offering riders an unparalleled look into the rugged beauty, vast horizons, and quiet solitude of Montana’s wild backcountry.
The MTBDR is a masterclass in diverse adventure riding, crossing more than thirteen spectacular mountain ranges. Your tires will spin along high alpine ridges, drop into remote valleys, and track past shimmering lakes, dense pine forests, historic mining towns, and wide-open ranchlands. True to the Butler Maps benchmark, this guide highlights a brilliant blend of scenic gravel, flowing forest service roads, and rugged backcountry two-track, complete with optional harder sections to test your grit. Built to endure the elements, this map is printed on waterproof, tear-resistant, and fade-resistant synthetic material, folding down perfectly to fit into a standard motorcycle tank bag. With elevation profiles, critical gas stop markers, seasonal weather charts, and detailed written section descriptions, it is your ultimate playbook for tackling the big country.
Comprehensive Western Link: Full 900-mile track mapping connecting the Idaho border directly to the international boundary at Canada.
Thirteen Mountain Ranges: Clear topographic shading detailing high-altitude ridge routes and mountain passes.
Human-Vetted Trails: Every mile of scenic gravel and technical two-track has been physically scouted and rated.
Overland Essentials: Pinpoints critical remote fuel stations, wilderness campgrounds, and historic landmarks.
Bulletproof Construction: Substrate is entirely impervious to water, oil, trail dust, and UV fading.
| Route Metric | Detail / Requirement | Preparation Note |
| Total Distance | 900 Miles | Typically conquered over 6 to 7 riding days |
| Terrain Diversity | Gravel, forest service roads, technical two-track | Preparedness for deep ruts and loose shale is key |
| Fuel Logistics | Remote regions necessitate a solid fuel strategy | Map calls out critical distance windows between pumps |
| Best Riding Window | July – September | High-alpine passes can hold heavy snowpack well into June |