Source To Mouth river run
Source To Mouth
The class rating for the Whitewater River ranges from Class II to Class IV, with several challenging rapids and obstacles along the way. Some of the most notable rapids include Marble Creek, Devil's Tooth Rapid, and The Chute. These rapids can be particularly challenging at high water levels, and require experienced paddlers to navigate safely.
In terms of segment mileage, the Whitewater River can be broken down into three main sections: the Upper, Middle, and Lower Sections. The Upper Section is approximately 10 miles long, and is known for its steep gradient and challenging rapids. The Middle Section is the longest, at approximately 15 miles, and features a mix of challenging rapids and more relaxed stretches of water. The Lower Section is the most mellow, with gentle Class I and II rapids and a peaceful float to the confluence with the Salmon River.
To ensure safety and protect the environment, there are several regulations in place for the Whitewater River Run. These include permits for commercial outfitters, restrictions on group size, and guidelines for camping and campfires. Additionally, boaters are encouraged to practice Leave No Trace principles and pack out all trash and waste.
Plan your run down to the hour
Same weather feed Snoflo's iOS app uses -- updated continuously from NOAA / yr.no. Watch the precipitation column on the meteogram; rain ahead of a run typically lifts flows 12-48 hours later depending on the basin.
Next 5 days, hour by hour
Temperature line with weather symbols on top, snow + rain accumulation as columns, humidity as a dotted line.
5-day forecast table
Every 3 hours, broken out across temperature, snow, rain, humidity, and wind. Each cell is colour-coded relative to the column min/max.
| Time | Condition | Temp (°F) | Snow (in) | Rain (in) | Humidity (%) | Wind (mps) | Wind dir |
|---|---|---|---|---|---|---|---|
| Loading detailed forecast… | |||||||
15-day temperature & precipitation
Daily temperatures, snow, and rain projected over the next two weeks -- the upstream story that drives next week's flows.
Regional streamflow levels
USGS streamgauges around Source To Mouth -- useful for spotting upstream pulses and gauging which tributary is contributing what.
| Streamgauge | Discharge | View |
|---|---|---|
| Logan | 68 cfs | → |
| Logan River Above State Dam | 410 cfs | → |
| Bear River At Idaho-Utah State Line | 483 cfs | → |
| Blacksmith Fork Ab U.P.&L. Co | 74 cfs | → |
| Little Bear River At Paradise | 83 cfs | → |
| Big Creek Near Randolph | 4 cfs | → |
Plan a longer trip
The closest boat launches, other paddle runs, and campgrounds so a day on the water can grow into a full weekend.
Other river runs
- Southern Boundary Of State Land To Mouth
- Idaho State Line To Confluence With Beaver Creek
- Ricks Spring To Wood Camp Campground
Campgrounds
- Tony Grove Lake Campground
- Tony Grove Lake
- Lewis M. Turner Campground
- Red Banks Campground
- Smithfield
- Smithfield Campground
Whitewater safety
- Check the flow before you run
- Use the linked-gauge card and Regional Flow panel above. Class ratings change with flow -- a Class III at low water can become Class IV+ at high water.
- Know your skill ceiling
- Pick runs comfortably below your ceiling. Cold-water and big-water runs raise the consequences of any mistake.
- Wear the right gear
- Helmet, PFD, drysuit / wetsuit when water is below 60°F. Throw bag, knife, and whistle on your person, not in the boat.
- Scout, set safety, and run with a team
- Scout new rapids on foot, set safety with throw bags above the consequence pool, and run with at least one other competent paddler.
- Respect the river
- Strainers, undercuts, low-head dams, and wood can kill at any class rating. When in doubt, portage.
Set push alerts in the Snoflo app
Save Source To Mouth as a favorite, set a discharge threshold (e.g. "alert me when flow hits 600 cfs"), and the iOS app pushes the moment the linked gauge crosses.
About Source To Mouth
What's the optimal flow for Source To Mouth?
The optimal flow depends on the section and the craft. Check the Run Details panel for the linked gauge and current status.
How fresh is the cfs reading on this page?
The linked USGS streamgauge reports continuously (every 15 minutes); Snoflo refreshes throughout the day. Hover the streamflow sparkline to read individual datapoints.
What's the whitewater class?
See the Run Details panel for the class rating Snoflo tracks for this run. Class ratings change with flow -- a Class III at low water can become Class IV in high water.
Where do I put in / take out?
Tap Directions in the hero above to open driving directions to the put-in. For shuttle planning, check the Nearby Boat Launches panel and the river run operator's site.
Can I get alerts when flows hit the optimal range?
Yes -- alerts are managed in the Snoflo iOS app. Favorite this run, set a discharge threshold, and you'll get a push the moment the gauge crosses.
Other runs near here
Snoflo-tracked paddle runs within driving distance of Source To Mouth.