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A difficult 20-mile loop that takes riders up past Little Casino Creek and down Big Casino Creek, all with great views!

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9,511' 2,899 m


6,130' 1,868 m


3,605' 1,099 m


3,587' 1,093 m



Avg Grade (4°)


Max Grade (20°)

Dogs Off-leash

E-Bikes Unknown


This is a challenging loop that takes riders high above Stanley and provides spectacular views of Redfish Lake and the Sawtooth Mountains from across Highway 75. The climb is brutal and will involve significant bike-pushing for even the best riders (there's also some fun climbing, you just won't remember it). The descent is somewhat technical and rocky and is the best part of the ride. The loop is well worth tackling, but be ready for a tough adventure with great views and good biking.

Need to Know

  • Bring a water filter and extra clothes.
  • A less common alternate to this loop takes riders up the highway and Rough Creek Road to continue up Rough Creek Trail and Sunny Gulch to reach the descent on Martin-Big Casino. This option can be pedaled or partially-shuttled, but it still involves a lot of climbing and some hike-a-bike.


The ride starts and finishes at the Casino Creek Campground just north of Stanley, ID on Highway 75. Ride up the Little Casino trail, starting in a gully and eventually reaching a ridge overlooking the Sawtooths. As you traverse this ridge, you'll pass a few junctions, at all times continue straight on Little Casino.

The views are spectacular, and you'll get plenty of opportunities to check them out while pushing your bike up certain sections. The largest junction is with the Boundary Creek Trail. After this trail comes in from the right, you'll start up the final, heinous hike-a-bike to the top. Here you're rewarded with views to the east of the White Cloud mountains.

From the top it's a non-stop descent! You'll quickly come to a junction, where you'll turn left onto the Martin-Big Casino Trail. The descent has some more challenging technical sections, but it's mostly fast, rocky, and fun! Follow this trail for about 10 miles back to the Casino Creek Campground.


Shared By:

Scott Andrews

Trail Ratings

  4.6 from 12 votes


  4.6 from 12 votes
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in Idaho


11 Views Last Month
4,766 Since Jul 23, 2017
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The views on Sunny Gulch are to die for!
Jul 5, 2017 near Challis, ID
The top of Little Casino with the Sawtooths in the background
Sep 8, 2014 near Challis, ID
Starting the ridge crossing
Jul 15, 2020 near Challis, ID
The views are stellar
Jul 15, 2020 near Challis, ID
Starting the long climb up.
Jul 15, 2020 near Challis, ID
Trail here has a bit of a soft/sandy surface. Later it turns into one long hard packed rock garden as you gain elevation.
Aug 27, 2016 near Challis, ID


Current Trail Conditions

Add Your Check-In


Jun 27, 2021
Megan Sutton
Rode this yesterday. All clear of snow. The climb is killer but this ride probably has some of the best views around!
Jul 3, 2020
Tim Piver
Fantastic push with some sleet, light rain, snow, and 40 temp swing in one ride! Snow and mud up top still in places. Some hike a bike. 21.6mi — 5h 00m
Aug 24, 2019
Andrew Colvin
Jul 8, 2019
Kelci Pike
Jul 29, 2018
Ridge Hainsworth
Jul 4, 2018
David S
Wow! That was a butt kicker, but worth it. Very little mud/snow up top. Getting dry/dusty but hit it soon before it gets too moto‘d out. 19.1mi
Aug 27, 2017
Mike McAuley
Aug 6, 2017
Cameron Nolen
Fun and technical, good bit of hiking if dry.

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