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Osberg Ridgeline Epic (Osberg Ridge Ahhsberg #147 Ahhs-berg)

Mountain Biking Trail

Hard
32.93 mi
3,648 ft
An epic length point-to-point route that breaks above treeline, providing breathtaking views.

The “epic” in the name “Osberg Ridgeline Epic” comes from at least three aspects:
1. The epic length of this full-day point-to-point route.
2. The epic singletrack winding through the massive mountains.
and
3. The epic views from the above-treeline ridge!

Despite requiring a significant shuttle from downtown Ketchum to reach the trail’s starting point, this route still requires over 3,000 feet of uphill pedaling. That 3,000 feet of climbing gets you 5,500 feet of descending, along with a sweet 15-mile ridge traverse with the epic views this trail is renowned for!

The views from the top feel like they’ll never end as you pedal around one bald corner and then another, with mountain ridges marching off into the distance until they slowly fade from view.

The views wouldn’t be nearly as pervasive without a recent wildfire that decimated the forest throughout this area. As you pedal through blackened tree trunks, a sea of brilliant wildflowers will keep the atmosphere from being too depressing.

Overall the singletrack around Ketchum is buff and flowy, with technical obstacles few and far between. That said, the Osberg Ridgeline trail throws one or two steep, techy descents at you. In fact, Osberg is home to one of the few moderately technical stretches of trail in the greater Sun Valley area… but don’t let that keep you from riding your hardtail, as it will serve you well on 90% of this trail.

Once the singletrack drops off the top of the mountain, it descends quickly into a narrow valley that was protected from the wildfire. Here, old growth pines tower high above, providing a welcome respite from the sometimes-brutal Sun Valley sun.

A few different options exist to finish the Osberg Epic and return to Ketchum—some more difficult than others. Depending on how you’re feeling at this point, you can tailor the difficulty of trail to your fitness level, or pop out onto the highway and coast back to town. Written by Greg Heil
Created By
Strava Routes

Route and Elevation

Segments

NameDistanceElev. Diff.Avg. Grade
Osberg Ridge to lookout4.69 mi1,030 ft3.9%
Osberg/Warm Springs Ridge Trail13.42 mi1,739 ft1.0%
Baker Creek Road Climb0.80 mi367 ft8.7%
Osberg Climb8.10 mi1,709 ft4.0%
Osberg to Barr Gulch5.59 mi1,119 ft3.8%
Lost Shirt > Castle Intersection - JB1.25 mi630 ft9.5%
National Forest Development Road 162 Climb1.14 mi367 ft6.1%
National Forest Development Road 162 Climb1.90 mi643 ft6.4%
moonman0.93 mi-453 ft-9.2%
Osberg steep dh1.07 mi-446 ft-7.2%
Osberg to Top of Alden2.68 mi-709 ft-4.9%
Osbuerger from rock drop to Rooks4.89 mi-640 ft-2.5%
wiggins 1.03 mi-413 ft-7.5%
froome1.23 mi-400 ft-6.2%
Oregon Gulch DH2.77 mi-1,667 ft-11.2%
Edge Of The World5.66 mi-2,270 ft-7.6%
Top dh0.68 mi-650 ft-18.0%
Edge of the world (steep part)2.58 mi-1,660 ft-12.2%
Oregon Loop Descent5.83 mi-2,267 ft-7.3%
Oregon Gulch ridiculous descent2.65 mi-1,693 ft-12.1%
Bottom of Edge1.13 mi-745 ft-12.5%
Lower Oregon Gulch DH2.69 mi-479 ft-3.4%
Saddle Trail Southbound1.09 mi407 ft7.1%
Sadle_DH_South1.13 mi-387 ft-5.9%
Oregon Saddle DH South (improved)0.88 mi-305 ft-6.5%
downriver choco-fox gnar0.71 mi-85 ft-2.3%
F-M'er0.11 mi82 ft13.1%
Tues night ride final Sprint0.25 mi-7 ft-0.5%
Hulen to Warm Springs2.35 mi-105 ft-0.8%
Hulen 👉Adams 1.12 mi-46 ft-0.5%