What Class Rapids are on the Salmon River Canyons
Before heading out on a rafting trip through the Salmon River Canyons, it can be helpful to know what kind of rapids to expect. Will there be big, splashy waves? Sections with lots of rocks to navigate? Something in between?
To answer that, it helps to understand the whitewater rapid classification system—used worldwide and typically ranging from Class I (flat, calm water) to Class VI (the most extreme and rarely run). The classification of each rapid is somewhat subjective, usually agreed upon by experienced boaters who know a particular stretch of river. Ratings can also vary depending on water levels.
On a Lower Salmon River trip, most of what you’ll encounter falls in the Class II to Class III range. This makes it an ideal trip for those looking for a mix of excitement and relaxation. Like many classic western rivers, this is considered a “pool and drop” river—meaning the rapids are often followed by calmer stretches of water (or ‘pools’) where you can swim, soak in the scenery, and relax.
Salmon River Canyons Map and Rapid Overview
Quick Facts about the Salmon River Canyons
- Best Rafting Season: July through early September is the prime time to raft the Salmon River Canyons. These months offer the best combination of warm weather, warm water, and ideal flows that are perfect for swimming, camping, and navigating the rapids.
- Location: The Lower Salmon River flows through north-central Idaho, carving a route through four beautiful canyons—Green, Cougar, Snow Hole, and Blue—before meeting the Snake River near the Idaho/Washington border.
- River Flow: The Salmon River flows generally northwest, fed by snowmelt from Idaho’s central mountains. It is a free-flowing river, meaning it’s undammed and subject to natural seasonal fluctuations in water level.
- Tributaries: The Salmon River is a major tributary of the Snake River and is joined by several creeks and streams along the canyon stretch, including Whitebird Creek, French Creek, and Eagle Creek.
- River Mileage: Most trips on the Salmon River Canyons cover approximately 73–80 river miles, starting near Hammer Creek and ending near the confluence with the Snake River, with a take-out at Heller Bar.
Demon’s Drop - Class III
The first 11 miles of the Salmon River Canyons are full of Class II and a few small Class III rapids. These initial rapids are the perfect way for you and your group to get warmed up, comfortable, and ready for the bigger, more exciting rapids downstream. The first of the Class III rapids on this run, Demon’s Drop, sets the tone for what’s ahead. At water levels, it’s a series of splashy waves that brings some excitement into your first leg of the trip. At high water levels, a feature known as a 'hole' can form in the center of this rapid. A hole is a spot where water recirculates back upstream, kind of like a natural jacuzzi, and it’s something your guide will navigate around. Demon’s Drop is always a favorite as it’s one of the first bigger rapids that delivers a memorable splash and kicks off your journey down the Salmon River Canyons.
Bodacious Bounce - Class III
Bodacious Bounce was named for its large wave train that can feel like a roller coaster at the right flows. At lower flows, it becomes a bit more technical with a few rocks and holes that your guide will navigate through. Just above the rapid, there’s a great spot to pull over and take a look at what’s ahead—a practice known as scouting. Groups who are rafting without a professional guide often scout rapids when it's their first time on a section of river. On company-led trips, scouting is less common thanks to our guides' knowledge and years of experience navigating these waters.
Half and Half - Class III
Half and Half is known for having a bit of a split personality. Part of the rapid is smooth with fun splashy waves, and the other part is slightly more technical with rocks and some holes, the jacuzzi- like features we mentioned previously. There is a large rock near the bottom center that serves as a key landmark for guides navigating down Half and Half.
If you’re rafting the Salmon River Canyons without a guide, there’s a great spot to pull over and look at the rapid on the right side of the river before running it. With its mix of fun and challenge, Half and Half is one of the most rewarding rapids on the trip.
Snow Hole - Class IV
Snow Hole is the standout rapid of Snow Hole Canyon—an exciting and memorable part of your journey down the river. With its big waves and boulders scattered throughout, it offers a few different routes that guides can take depending on the current water level and conditions. One popular line is down the center-right, where you’ll have a fun mix of playful maneuvers and splashy thrills. No matter what way you go, you’ll be having fun weaving around rocks, riding through waves, and enjoying some refreshing splashes along the way!
China Rapid - Class III
China Rapid is a fun, longer Class III rapid known for its big ways and playful features. The usual route is down the left side, where your guide will steer you around a few rocks while you paddle and enjoy the ride. There’s a great spot to pull over and scout this rapid from the left side of the river if you’re on a trip without a guide.
Once you paddle through China Rapid, the canyon opens up– marking the end of Snow Hole Canyon and giving you a chance to kick back and soak in the views.
Slide Rapid- Class II-V, Depending on Flows
Slide Rapid is a great example of how river rapids can change with the flow of water. During most of the commercial rafting season, it’s a fun and approachable Class III rapid offering just the right amount of excitement without being too intense. As the season goes on and water levels drop, it mellows out even more.
At very high flows, usually seen in early spring before commercial trips begin, Slide Rapid can become more powerful and is rated Class V. These conditions are rare during the guided rafting season, so guests typically experience this rapid when it's in its most fun and manageable state—perfect for making great memories on the river.
The Perfect First Whitewater Rafting Trip
The Salmon River Canyons offer a blend of splashy fun and thrilling whitewater. With a mix of approachable Class II and III rapids and a handful Class IV rapids, this stretch of river is a favorite for families, first-timers, and seasoned river runners. Whether you're drawn to the excitement of Snow Hole or the playful waves of Bodacious Bounce, you'll find adventure and stunning scenery around every bend.
