Idaho Hot Springs Mountain Bike Route
Soak your way through more than 50 hot springs on a rugged bikepacking loop past peaks, trout streams, and cozy mountain towns.
- Distance
- 518 miles
- Surface
- 15% paved
- 1 week–3 weeks
- Route Type
- Loop
Ride the Idaho Hot Springs Mountain Bike Route
This loop starts and ends in Idaho City, with a spur connecting to Boise and a cutoff for a shorter trip. Four optional singletrack sections add technical riding but must be ridden counterclockwise.
What to Expect
Picture steaming pools beside rushing rivers, the smell of pine, and granite peaks rising above quiet valleys. This loop trades pavement for dirt roads and four-wheel-drive tracks through subalpine terrain, with long climbs, rough surfaces, and high elevations that make it a real mountain-bike tour rather than a gravel cruise. It’s remote, too: most nights are spent camping, services are spread out, and riders need basic bike maintenance skills to handle problems on their own.
This route offers the highest concentration of soakable hot springs in North America, with more than 50 to choose from, from primitive riverside pools to developed spots like Burgdorf Hot Springs and Silver Creek Plunge. Riders pass beneath the jagged Sawtooth Mountains near Stanley, through the resort town of Ketchum and lakeside McCall, and into Idaho City, an old gold rush town, alongside blue-ribbon trout streams. A commercial float on the Salmon River, the storied River of No Return, makes a great side trip near the Secesh singletrack option.
Surfaces range from pavement and good gravel to four-wheel-drive roads, singletrack, and old railroad grades. The route climbs through subalpine forest and drops into deep river canyons, with regular climbs and descents between river valleys and high passes. The full route includes detailed riding conditions and field notes for every climb and descent.
Towns are spaced at reasonable intervals for a mountain route, but services thin out considerably on the singletrack options, so plan resupply carefully before heading onto those sections. Bike shops are limited to a few larger towns, so be self-sufficient with basic repairs. Cell coverage is spotty to nonexistent across much of the route, so download your Ride with GPS route for offline use, and consider a satellite communication device.
Ride this route from midsummer through early fall, since high-elevation sections can hold snow into early summer in some years. Afternoon thunderstorms are common in the mountains, so plan to be off exposed ridgelines by early afternoon. Nights stay cool even in midsummer given the elevation, so pack layers regardless of when you go, and expect possible wildfire smoke in late summer.
Route Sections
Main Route Loop, Idaho City, ID to Idaho City, ID, 517.5 miles
This dirt-road loop connects Idaho City, Featherville, Ketchum, Stanley, McCall, Cascade, and Crouch, with an optional spur into Boise. A paved cutoff near Lowman splits the loop roughly in half, and the main route can be ridden in either direction. The full route includes turn-by-turn directions, service information, and field notes for the entire loop.
Singletrack Options, Idaho City, ID to Idaho City, ID, 245.9 miles
Four optional singletrack sections supplement the main route for riders seeking more technical terrain, including the Secesh option near the Salmon River. These sections aren’t designed to be ridden in both directions, so ride them counterclockwise when combining them with the main loop. An earlier White Clouds option was rerouted after the 2015 designation of the White Clouds Wilderness, where bikes aren’t permitted, so make sure you’re using the current version of the route. The full route includes turn-by-turn directions, service information, and field notes for each option.
Idaho Hot Springs Mountain Bike Route Photos
Plan Your Ride
Long stretches between towns, rough roads, and mostly camping nights mean resupply, repair, and gear planning come first on this remote dirt-road loop.
Trip Planning & Logistics
The Boise Spur connects the route to Boise and its airport for riders flying in, and Idaho City makes a good starting point for riders arriving by car. Most riders plan one to two weeks for the full loop, depending on singletrack additions. This route is available in paper and digital formats through Adventure Cycling’s shop and includes routing, detailed service information, riding conditions, and field notes for trip planning.
A mountain or gravel bike suits this route well given the mix of dirt roads, four-wheel-drive tracks, and old railroad grades, and riders adding singletrack should bring wider, knobby tires and some suspension. Brush up on basic bike maintenance before departure, since services are sparse, and carry the tools and spares to fix most problems yourself. Pack a water filter, full camping gear, warm layers for cold nights, bear spray, and swimwear for the many hot springs along the way.
Commercial lodging is limited along this route, so most riders camp the majority of nights, at Forest Service campgrounds or dispersed sites on public land where permitted. Come equipped with a reliable tent and sleeping bag and the skills to camp responsibly. A few small towns along the loop offer motels or cabins for an occasional indoor night. At hot springs, pack out everything you bring in, and be aware that some springs are clothing-optional.
Resupply towns are spaced at workable intervals on the main loop, including Featherville, Ketchum, Stanley, McCall, Cascade, and Idaho City, but services thin out considerably on the singletrack options, so stock up before heading onto those sections. Surface water is generally available but should be filtered or treated before drinking. Keep an eye out for huckleberry treats in season, an Idaho favorite. Check your digital route in Ride with GPS for service phone numbers, and call ahead for anything outside peak season.
This is bear country, so carry bear spray and store food properly away from camp. At hot springs, test the water before getting in, since some sources run scalding, and keep your head above water to avoid getting spring water up your nose. Wildfires are common in late summer, so check conditions before and during your trip. Traffic is minimal, but watch for logging trucks on some forest roads, and wear blaze orange during fall hunting season.
Always check Adventure Cycling Route Updates and Corrections before you go.
Routes change. Bridges wash out, businesses close, and construction pops up overnight. We strive to keep routes updated as those things happen. When we learn about a change, we reroute around sections that have become dangerous or are temporarily closed for road work, bridge outages, or construction, and we update service information as businesses open, close, or move. Digital routes are updated as soon as we’ve reviewed a reported issue.
You’re often the first to spot these changes out on the road. Help us keep this route accurate for the next rider by reporting anything you notice with our Route Feedback Form.
This Route Is Part of Something Bigger
It’s one piece of the Adventure Cycling Route Network, began in 1976 and built on a simple mission: to empower people to travel by bike. Our team maps and maintains it; our members and donors make it possible.
-
Explore the Adventure Cycling Route Network
Our premium routes are well researched by our cartographers and well traveled by thousands of cyclists.
Adventure Cycling Route Network -
Support Route Development
Our members are the reason we can offer three route networks tailored for specific experiences and riders.
Become a Member -
Stay Connected
Find your stoke with our newsletter all about routes, gear, stories, and cycling news in your inbox twice a month.
Sign up for Bike Bits
Frequently Asked Questions
It’s our flagship, staff-built route network. The one that started it all 50 years ago with the TransAmerica Trail, the route that launched bicycle touring and bikepacking in America. Every route in it is designed and researched by our own team of cyclists and cartographers: months of research and on-the-ground testing go into each one, so what you get is more than a line on a map. Each Adventure Cycling route has detailed logistics, terrain and elevation info, points of interest, camping and lodging, safety alerts, and history, all in one place. It’s the most in-depth of our three networks, available as digital routes and most as paper maps too. It’s the route network we update most regularly as conditions change.
They’re related, but not the same thing. The Adventure Cycling Route Network is made up of routes we’ve researched, ridden, and mapped ourselves, chosen specifically for a great touring or bikepacking experience. The U.S. Bicycle Route System (USBRS) is a state-by-state national system that we serve as technical experts for, made official through each state’s department of transportation. The two overlap in a lot of places, but an ACRN route carries our own on-the-ground vetting; a USBRS route carries official state recognition.
It depends! If you want a route we’ve personally scouted end to end, with services, camping, and terrain notes built in, start with the Route Network. The ACA Route Network has routes of many different lengths and can be a much easier starting place for someone new to bicycle travel. If you’re an experienced cyclist piecing together an officially designated corridor, or riding somewhere the two systems converge, the interactive USBRS map is a good resource to use.
The Adventure Cycling Route Network is a premium network because of everything that goes into it. Unlike the U.S. Bicycle Route System (built by state DOTs) or Short Routes (submittedby cyclists in their own communities), every Adventure Cycling route is researched, ridden, and vetted end-to-end by our own team. Unlike other routes, Adventure Cycling routes come with extensive information on riding conditions, terrain notes, camping and lodging info, logistics, safety alerts, and points of interest. We also keep it current as roads and services change. The price supports that ongoing research and maintenance work, done by a nonprofit whose whole mission is making sure the route in your hands is one you can trust.
Turn-by-turn directions with a bike icon aren’t the same as a route built for specifically touring or bikepacking. Every mile in the Adventure Cycling Route Network has been researched and ridden by our staff and researchers, chosen to avoid dangerous traffic, and mapped with what a touring cyclist actually needs — food, water, camping, hotels, bike shops — spaced out along the way. The Adventure Cycling Route Network was built for cyclists by cyclists, is regularly updated, and comes with the resources and information needed to plan your ride.
No. The network includes routes for a wide range of experience and difficulty levels, from a first multi-day trip to a cross-country expedition. What every route has in common is that it was chosen with a touring cyclist’s needs in mind, whatever kind of trip you’re planning.
Not at all. Alongside iconic long-distance routes like the TransAmerica Trail, the network includes shorter regional routes, so it works for a weeklong vacation or a two-month journey.
For many years, we focused on paved routes, but today the network includes plenty of unpaved gravel riding for bikepacking. In fact, Adventure Cycling mapped the Great Divide Mountain Bike Route in 1998, arguably the most impactful bikepacking route in the world. The Adventure Cycling Route Network also includes the Golden Gravel Trail, Idaho Hot Springs Mountain Bike Route, Arkansas High Country Route, and more. Some routes are a 50/50 mix of pavement and gravel. Some routes follow paved and unpaved bike paths and rail trails. The Adventure Cycling Route Network has terrain for every cyclist.
We revisit our printed maps every three to five years, and push corrections to our digital route data as we learn about changes on the ground. If you have an Adventure Cycling Route in Ride with GPS that we’ve updated, you’ll get a notification when you open the route to update to the newest version of the route. Updating will ensure you have the latest data, information, and points of interest vital to being on route. For cyclists who have Adventure Cycling paper maps, we keep a list of route- and section-specific updates current on our Map Updates and Corrections page.
Change comes from two directions: our own staff research and reports from the cyclists actually out there riding them. If a bridge washes out, a shoulder disappears, a campground closes for repairs, or a town loses its only grocery store, that’s the kind of thing that triggers an update. You can help us keep our routes accurate; fill out our Route Feedback Form.
Most of our Adventure Cycling Routes come as waterproof print maps and digital Ride with GPS navigational data. Our print maps are the #1 longstanding popular resource for traveling cyclists. They are waterproof, highly detailed and always work. For long trips, many cyclists use a combination of print maps and digital routes.
If you’re already comfortable and familiar with a GPS navigational aid such as Ride with GPS or a Garmin, our digital data packages are an excellent choice. We do not recommend GPX data for beginners since there are a few extra steps to installing and troubleshooting.
Once you purchase a digital route, you’ll get an email with a link to unlock it in the free Ride with GPS app — no separate subscription required for basic navigation. From there you get turn-by-turn voice directions, curated points of interest like campgrounds and bike shops, and field notes on the history, geography, and climate along your route, all available 100% offline. If you’drather use a dedicated GPS device, you can export the route as a GPX file to load onto a Garmin, Wahoo, or similar device.
To export GPX files of your Adventure Cycling digital route, use your laptop or desktop to open the email you received after purchasing your digital route. Click on the link that allows you to access your Digital Route. Finally, click on EXPORT ALL at the bottom of the screen. This is the only way to export files that include the route line, points of interest, and services. Files will be exported as one ZIP file.
Adventure Cycling uses abbreviations across its paper and digital routes to indicate particular services, land or road types, route names, direction of travel, and route type. Please see our key to abbreviations.
If you have questions on how to purchase a digital route or about the route content, please contact Adventure Cycling: cartography@adventurecycling.org or 406-721-1776.
If you have questions on how to use your Digital Route in Ride with GPS, please check the Ride with GPS support page or email them at info@ridewithgps.com.
If you’re new to Ride with GPS, please check out the following resources:
Our print map panels aren’t always oriented northwards for space and layout reasons. Refer to the north arrows to help orient yourself if you’re not sure.
No. The Routes and Mapping Department does not do custom routes for individuals. Check out the routes we’ve already mapped, and use the interactive map to piece our route networks together, forming a route that gets you from a point A to point B of your choice.
It started with a single route. In 1976, we mapped the TransAmerica Trail, and more than 4,000 cyclists crossed the country together for Bikecentennial — the nation’s bicentennial cycling celebration our founders organized. That one route became the seed of a network we’ve spent the decades since expanding. Today it’s more than 58,000 miles of mapped routes across the U.S. and Canada, from classic epics like the TransAmerica Trail, Great Divide Mountain Bike Route, and Pacific Coast, to shorter regional routes.