Western States 100 Endurance Run
Western States 100 Endurance Run
4.6
(4231)
14,142
runners
06:29
49.1km
1,330m
Running
Jogging the difficult 30.5-mile Western States 100 Endurance Run in Auburn State Recreation Area offers diverse scenery and significant elev
Last updated: February 26, 2026
Waypoints
Start point
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3.92 km
Highlight (Segment) • Trail
Tip by
49.1 km
End point
Way Types & Surfaces
Way Types
37.3 km
7.97 km
3.80 km
< 100 m
Surfaces
34.3 km
6.70 km
4.35 km
3.80 km
< 100 m
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Elevation
Highest point (480 m)
Lowest point (170 m)
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Wednesday 6 May
21°C
12°C
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This route was planned by komoot.
No, the Western States 100 Endurance Run is an exceptionally challenging route, generally not recommended for casual jogging or beginners. It is designed as an ultra-endurance challenge, traversing 100.2 miles of rugged terrain with over 18,000 feet of cumulative climb and nearly 23,000 feet of descent. Even experienced ultra-runners find it grueling due to its technical terrain, significant elevation changes, and unpredictable weather conditions.
The trail offers incredible diversity, from high-country singletrack with rocky paths and tree roots in the early miles to dirt roads and some paved sections. It features a 'roller coaster' of steep climbs and long, sustained descents, particularly through canyons like Deadwood Canyon and the American River Canyon. These sections can be rough, rocky, exposed, and shadeless, leading to intense heat. Higher elevations may also be snowy and wet.
The full Western States 100 trail officially starts in Olympic Valley and finishes in Auburn. For day use, various trailheads along the route offer access. Within the Auburn State Recreation Area, which encompasses significant portions of the trail, you'll find designated parking areas. Specific parking availability can vary by trailhead, so it's advisable to check local park information for the section you plan to visit.
Yes, if you plan to access sections of the trail within the Auburn State Recreation Area, you will typically need to pay an entrance fee for vehicle parking. These fees contribute to the maintenance and operation of the park. While general recreational use usually doesn't require a specific permit beyond the park entrance fee, it's always a good idea to check the official California State Parks website for the most current regulations and any specific permits that might be required for certain activities or group sizes.
Regulations regarding dogs can vary along different sections of the 100-mile trail, especially as it passes through various jurisdictions and wilderness areas. Within the Auburn State Recreation Area, dogs are generally permitted on trails but must be on a leash no longer than six feet. Always be sure to clean up after your pet. For other sections, particularly in designated wilderness areas, dog restrictions may apply, so it's best to research the specific segment you intend to visit.
The best time to experience sections of the trail depends on the elevation and your tolerance for conditions. Late spring (May-June) or early fall (September-October) generally offer more moderate temperatures. However, be aware that higher elevations can still have snow and wet conditions in spring, while the lower canyons can be extremely hot and exposed during summer. Always check current weather forecasts for the specific section you plan to visit.
The trail offers breathtaking and varied scenery. You'll experience the majestic high country of Emigrant Pass and the Granite Chief Wilderness with dense forests and meadows, transitioning into the California gold country's canyons with deep valleys and historic reddish-brown trails. A memorable highlight is crossing the ice-cold Middle Fork of the American River. The landscape shifts from rugged mountains to shadowed groves and open, sun-soaked stretches.
Yes, the route also passes through sections of the ADT - California - T - Seg 4, Olmstead Loop Trail, Wendell T Robie Trail, Quarry Trail, Browns Bar Trail, American Canyon Trail, Maine Bar Trail, Shortcut Trail, Training Hill (Pointed Rocks) Trail, Robie Point Fuel Break Trail, Lover's Leap, Robie Point to Marion Way, Train Track Trail, No Hands Bridge, Pig Farm Trail, Point 52 Spur Trail, Riverview Trail, Dead Truck Trail, Park Access Trail, Access to Western States and Pointed Rocks Trails., Robie Point Fire Break Trail, American Canyon Trail (RB - WST), Western States Trail Access, Poverty Bar Trail, Rio Camino Spur Trail, River Bar, Cuz's Trail, and Tinkers Cut-off Trail.
The Western States 100 is renowned as the world's oldest 100-mile trail race, pioneering the sport of ultra-trail running. Its origin dates back to 1974 when Gordy Ainsleigh ran the Tevis Cup horse race on foot. The trail itself is often called a '100-mile museum' due to its historical significance, traversing lands used by Indigenous Peoples and gold prospectors. It's a symbol of endurance and a proving ground for ultra-running legends.
While the full trail is extremely challenging, some sections, particularly those within the Auburn State Recreation Area closer to the finish line in Auburn, might offer more accessible options for shorter, less strenuous outings. For example, parts of the Western States Trail near Auburn, like the Quarry Trail or sections around No Hands Bridge, are popular for day hikes and offer scenic views without the extreme elevation changes of the high country. Always check the specific trail conditions and difficulty for any chosen segment.
Beyond the sheer distance and elevation, the trail presents unique challenges. These include navigating highly technical terrain with rocks and roots, enduring extreme heat in exposed canyon sections, and potentially facing snow and wet conditions in the high country. The 'roller coaster' profile of steep climbs followed by punishing descents puts immense stress on the body, requiring specific training for both uphill and downhill running. Maintaining pace on such varied and demanding terrain is a major hurdle.