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Mexico MEX 40 Libre Difficulty: 10/10

El Espinazo del Diablo (Devil's Backbone) - MEX 40 Libre

The crown jewel of North American motorcycle twisties and one of the world's supreme ribbons of tarmac. MEX 40 Libre rides the knife-edge ridge of the Sierra Madre Occidental, offering over 2,000 curves with sheer 3,000-foot vertical drops on BOTH sides of the motorcycle simultaneously at the famed Espinazo del Diablo viewpoint. Plunges nearly 9,000 vertical feet from cold alpine pine forests down into humid tropical jungle outside Mazatlán. Since commercial freight trucks now use the modern MEX 40D tollway, the old Libre road is virtually empty of traffic, creating a private racetrack sensation. Road Quality: Technical, narrow asphalt with tight radius hairpins; expect occasional rockfall debris on corners, pine needle scatter in shaded bends, and mountain fog. Safety & Military Checkpoints: Permanent SEDENA military checkpoint at the Durango/Sinaloa state line; strictly avoid riding after dark; stay in your lane around blind cliffs as local pickups occasionally drift across the center line. Fuel Range: Top off completely in El Salto; limited fuel until Concordia; maintain at least a 140-mile range.

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Distance
Distance
135 mi
217 km total run
Turns
Turns
2150
15.9 turns per mile
Summit
Summit
9,080 ft
Puerta de Mazatlán / La Ciudad
Surface
Surface
Paved (Twisty)
Difficulty: 10/10
3D Vector Trajectory
CARTO Dark Matter GL
Start: El Salto, Durango End: Concordia / Mazatlán, Sinaloa
Elevation Profile 150 – 9,080 ft
SUMMIT 9,080 FT
Puerta de Mazatlán / La Ciudad
Apex Density Index 15.9 curves / mi
Scenic Sweeper Technical Switchback
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Repair

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Nearby Staging
Moto City Durango ~50 mi
Durango, Durango • +52-618-818-4422
Dealership & Diagnostics | Emergency Tire & Repair
Brands: Yamaha, KTM, Honda, Kawasaki
Mazatlán Moto Service ~77 mi
Mazatlán, Sinaloa • +52-669-985-3311
Emergency Tire & Repair | Adventure Touring Support
Brands: BMW, Yamaha, Honda, Suzuki, Harley-Davidson
Lodge

Rider-Friendly Lodging

Covered Parking
Bourbon Street Grille & Historic Gold Rush Square ~1484 mi
Dahlonega, GA

Historic 1830s gold rush capital framed by red-brick sidewalks and antebellum architecture. Serves as the southern gateway launching pad for GA-60 and Blood Mountain. Riders gather on the shaded balcony of Bourbon Street Grille to swap tales while watching a steady parade of touring rigs circle the historic square.

Cue

Tank-Bag Quick Reference Sheet

Start Point El Salto, Durango 23.7844, -105.3639
Summit / High Point Puerta de Mazatlán / La Ciudad 9,080 FT Summit
End Destination Concordia / Mazatlán, Sinaloa 23.2889, -106.0664
T-CLOCS Pre-Ride: Tires & Wheels Controls & Cables Lights & Electric Oil & Fluids Chassis & Stand
DUNLOP
Official Tire Partner: Grip for Mountain Passes
Dunlop Roadsmart IV and Trailmax Mission provide maximum wet/dry confidence on mountain switchbacks.
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Frequently Asked Questions

How many curves and miles is El Espinazo del Diablo (Devil's Backbone) - MEX 40 Libre?

El Espinazo del Diablo (Devil's Backbone) - MEX 40 Libre spans 135 miles and packs approximately 2150 curves (15.9 curves per mile) with an elevation delta of 150 ft - 9,080 ft (Puerta de Mazatlán / La Ciudad) and technical rating 10/10.

Where are the start and end coordinates?

The route starts at El Salto, Durango (Latitude 23.7844, Longitude -105.3639) and finishes at Concordia / Mazatlán, Sinaloa (Latitude 23.2889, Longitude -106.0664).

How can I download the GPX file for GPS navigation?

Click the "Download Free GPX" button on this guide. The standard XML file is 100% free and ready to load into Garmin zūmo, BMW Motorrad Connected, Rever, Scenic, or Google Maps.

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