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Harriman Trail

5 Star Route / ~ Ketchum, Idaho / Published: Jun 2022 / Updated: Nov 2025 / Directions
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Gravel cyclist on the Harriman Trail double track near the Sawtooth visitor center.
Leading out! / May 2025
Gravel cyclist riding over a small bridge across the Big Wood River.
Gravel cyclist crossing a wooden bridge on the Harriman Trail near Ketchum, Idaho.
Dick Murphy Bridge
Skull in field with gravel cyclist in background.
Gravel cyclists meeting on the trail in Sawtooth National Forest.
Gravel rider on double track in Sawtooth National Forest.
Gravel cyclist on double track with Boulder Mountains in the distance.
Gravel cyclist on single track through the Aspen in Sawtooth National Forest.
Gravel cyclist on double track in Sawtooth National Forest on the Harriman Trail.
Deer on the side of the cycling trail in Sawtooth National Forest
Gravel cyclist on double track on the Harriman Trail in Sawtooth National Forest.
Gravel cyclist on gravel road on Harriman Trail in Sawtooth National Forest.
Wildflowers on the side of the Harriman Trail in Sawtooth National Forest.
Gravel cyclist on double track through the trees on Harriman Trail in Sawtooth National Forest.
Gravel cyclist moving bike across a downed log on Harriman Trail in Sawtooth National Forest.
Gravel cyclist on double track Harriman Trail in Sawtooth National Forest.
Gravel cyclist on double track Harriman Trail in Sawtooth National Forest.
Gravel cyclist on double track Harriman Trail in Sawtooth National Forest.
Galena Station, an old building, along the Harriman Trail in Sawtooth National Forest.
"Galena Station," an original Galena building.
Galena Lodge, halfway through the Harriman Trail in Sawtooth National Forest.
Galena Lodge, Sawtooth National Recreation Area
Gravel cyclist on double track Harriman Trail in Sawtooth National Forest.
On the return.
Double track along the river on the Harriman Trail in the Sawtooth National Forest.
Wildflowers on the side of Harriman Trail, Sawtooth National Forest.
Gravel cyclist on double track Harriman Trail in Sawtooth National Forest.
Gravel cyclist on double track Harriman Trail in Sawtooth National Forest.
Gravel cyclist on double track Harriman Trail in Sawtooth National Forest.
Gravel cyclist on double track Harriman Trail in Sawtooth National Forest.
Bikes leaning against the sign for Sawtooth National Recreation Area Visitor Center.
Sawtooth National Recreation Area Visitor Center
*
Route:
Out & Back | 39 mi
*
Gain:
2,300 ft
*
Surface:
~ 100% gravel
*
Technical Difficulty:
Easier
*
Max Gradient:
+6% / -6%
*
Sustained Gradient:
0.8% over 19 miles
*
Climb Ratio:
0.6
*
Effort:
2 (out of 5)
*
Navigation:
Straightforward
*
Locale:
Urban Backcountry
*
Tire Suggestion:
45 mm+
*
Options:
Shorter

This is what all gravel trails should aspire to! A good, long, pristine gravel trail with some surprising twists and turns, scenic mountain views and full of history. Along the way, the trail is marked with kiosks that provide information about the area’s history and environment. Well worth the stop at each. We have not marked all the kiosk sites on the map below; instead, we recommend that you print or shoot a photo of this map.

This ride was even more fun and enjoyable than we expected. Though close to the highway, the trail quickly draws you into wide meadows, shaded forests, and sweeping mountain views, making the outside world fade away.

Of note, this ride is completely within the Sawtooth National Recreation Area. Established through bipartisan effort in 1972, the Sawtooth National Recreation Area covers 756,000 acres of incredible wild lands. National Recreation Areas are loosely defined as an area of terrain (land or water) that an act of Congress has protected due to the area’s natural resources, scenic attributes, and recreational opportunities. While there is no one set of laws guiding the management of these areas, the main intention was designed to get Americans out onto their public lands for recreation and enjoyment.

The SNRA includes the headwaters of several major rivers, such as the Salmon River, and is home to hundreds of lakes formed by alpine glaciers. The area’s diverse ecosystems provide habitats for a variety of wildlife, including timber wolves, wolverines, Canadian lynx, and sockeye salmon. The SNRA also served as a filming location for Clint Eastwood’s 1985 film “Pale Rider”.

Read More
Map
Brown = gravel / dirt road
Blue = single track
Red = paved road
Purple = paved bike path
GPX Download
(Version 1.2)

Caution! We do not provide turn-by-turn directions in our GPX files. Those are auto-generated by your bike computer and are usually less than 70% accurate. Learn more.

For help loading a GPX file onto your bike computer, go here.

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Learn More

Highlights & Remarkable Spots

Sawtooth Visitor Center/ ~ Start/End

The The Sawtooth National Recreation Area Visitor Center offers focused natural-history exhibits and short interpretive films that introduce the region’s human and ecological story. One highlight is the history of the Tukudika, or “Eaters of Mountain Sheep,” a mountain-adapted band of the Shoshone. Wildlife displays cover species encountered in the Sawtooths, including gray wolves and mountain goats. Botanical exhibits help riders identify dominant forest types—Douglas fir, lodgepole pine, subalpine fir, and Engelmann spruce—as well as riparian cottonwood and aspen stands. Seasonal wildflower panels feature lupine, fireweed, elephant’s head, and alpine forget-me-nots. ardian buckwheat.

Boulder Peak View / ~ Mile 5

Boulder Peak comes into view along the route. At nearly 11,000 feet in elevation, Boulder Peak is the most visible of the Boulder Mountains. The area drains to the Big Wood River via creeks like Boulder Creek. While it is only the 127th tallest peak in Idaho, it is steep and rugged and provides a stunning view into the deep wild areas of the Sawtooth National Recreation Area.

Easley Hot Springs / ~ Mile 7

Open seasonally from Memorial Day to Labor Day, Easley Hot Springs have soothed aching muscles for a very long time. Originally dug out by John V. Easley, there was a log house to provide miners a place to stay and clean up. With the decline in mining, the hot springs fell into disrepair. Then, in 1919, a Baptist Convention noticed the hot water in the river, and eventually petitioned the Forest Service for a permit in order to rebuild the facilities. Over the next century, Easley Hot Springs has seen many renovations as time and nature have taken its tolls. Nevertheless, it’s worth a stop to feel the warm water.

Galena / ~ Mile 19

Galena Lodge, halfway through the Harriman Trail in Sawtooth National Forest.

Founded as a mining town in 1879, Galena served the Wood River Valley with several hotels, stables, a meat market, and the Daisy Saloon. But when the veins of ore dried up in the 1890s, Galena was abandoned and left virtually a ghost town. In the early 1900s, with interest in outdoor recreation growing, the Galena Store served folks coming to visit the “Switzerland of America.” It became a Lodge in the 1960s, catering to skiers and other visitors. Continuing this tradition today, Galena Lodge offers guests a quiet place to enjoy the scenery, eat good food, rent gear, or stay overnight.

Russian John Guard Station / ~ Mile 27

Kiosk for Russian John Guard Station

“A roadhouse once stood in the meadow before you, serving as a way station for the first mail carrier of the north valley corridor.” According to local legend and lore, the ghost of Russian John visits campers and, as he is apparently a prankster, rearranges their campsites.

Pioneer Mountains View/ ~ Mile 29

The Pioneer Mountains are home to America’s first Backcountry ski hut. Built in 1937 by Averell Harriman, the Pioneer Cabin was modeled after the high-country touring huts used in the European Alps. Around the same time that the cabin was built, Harriman also began construction of Sun Valley Lodge and Resort, complete with groomed trails, and the world’s first modern chair lifts.

Ride Details

When We Like to Ride This

Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Not Rideable
Possibly Rideable
Rideable

Late spring and early fall are ideal. In late May, when we rode this, the wildflowers were in bloom, the trail was free of snow, and the Big Wood River was running strong.

In the early fall, the early miles of the route would be spectacular with the change in the color of the leaves of the Cottonwood and Aspen trees.

Terrain & Riding

The Harriman Trail winds gently through the heart of the Sawtooth National Recreation Area, following the Big Wood River beneath towering peaks. The trail is dirt and gravel double track that rolls fast climbing gradually all the way to Galena Lodge. You will encounter wide-open stretches and pass through shady forest corridors. The views shift between alpine meadows and rugged ridgelines. It’s feels both expansive and intimate.

The Start

Sawtooth National Recreation Area (North Fork) Visitor Center.
Lat / Long: 43.786977, -114.420365

Water & flush toilets. No parking fee.

Alternate Start / Prairie Creek Road
Lat / Long: 43.815168, -114.609114

Shorter Option: 11.5 miles, 900 feet of gain. Dirt parking lot.

Alternate Start / Baker Creek Road
Lat / Long: 43.784161, -114.556546

Shorter Option: 21 miles, 1500 feet of gain. The parking area is on the north side of Highway 75, you’ll cross over the highway to get to the Harriman Trail. Dirt parking lot. Pit toilet.

Alternate Start / Boulder Creek
Lat / Long: 43.776974, -114.499202

Shorter option. 28 miles, 1800 feet of gain. Dirt parking lot.

Food & Water

  • ~ Mile 19: Galena Lodge (opens mid June)
Notes & Options

Route Options

If a 38-mile ride is not what you’re interested in, there are many options to choose from.

Shorter
We have detailed 3 alternative start points in the Ride Details tab, ranging from 11.5 to 28 miles round-trip.

Longer
There are 2 trails that take you up to Galena Pass Summit. The Titus Lake trail is a single-track on the south side of the road, and the Galena Summit Toll Rd is a single-track on the north side of the road. For more information about the trails around Galena Lodge, check out this map. If you do either of these options, drop us a comment and let us know how it went.

Comments

Have you ridden this route? Got a question? Join the discussion!

Love Where You Ride! Learn More

The Harriman Trail exists because public agencies and local groups joined forces—but their resources are stretched thin. Stewardship cannot be left to them alone. It belongs to all of us.

As riders and trail users, we each have a role to play: give your time by volunteering, share your talent to strengthen trail programs, or contribute your money to support those doing the day-to-day work. Organizations like the Wood River Trails Coalition and the Blaine County Recreation District depend on our involvement to keep this place open and thriving.

We’re asking every Dirty Freehub community member to give back one hour for every ten hours you ride. It’s simple. It’s doable. And it matters. The Harriman Trail offers us beauty, connection, and joy—let’s return the favor with our time, energy, and support. Together, we can ensure this trail thrives for years to come.

Videos

A Sawtooth Celebration

Keep it Local! Learn More

Bigwood Bread and Cafe, Ketchum, Idaho

Keep it Local!

Ketchum is a small town with a big town food scene. From casual burgers to fine dining Italian, you’re sure to find what suits you. We like Bigwood Bread for an amazing breakfast and lunch selection. Grumpy’s is definitely “home of the best damn burgers in town!” And the pizza, wine, and pesto asiago meatballs at Enoteca create a cozy upscale experience.

Ridden and Reviewed by:

KevinE

KevinE / Team Dirty Freehub

He should have “Never Stop Exploring” tattooed on his chest! He loves adventures on bikes and is a Co-Founder of Dirty Freehub.

LindaE (aka Gravel Girl)

LindaE (aka Gravel Girl) / Team Dirty Freehub

She loves a good day of gravel, like most people like a good book. She’s always amused by the outdoors and the wild adventures. Gravel Girl is a Co-Founder of Dirty Freehub.

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