Pahsimeroi River river run
Pahsimeroi River
The Pahsimeroi River has a class rating of III-IV, with some sections reaching class V during high water flows. The segment mileage of the river run is approximately 17 miles long, taking rafters through a variety of exciting rapids and obstacles.
Some specific rapids and obstacles on the Pahsimeroi River include the Class IV+ Boulder Garden, Class V Lower Grouse Creek Falls, and the Class IV Pahsimeroi Wall. These challenging rapids require skilled maneuvering and attention to detail, but with a knowledgeable guide and proper equipment, they can be navigated safely.
Regulations in the area require all boaters to carry proper navigation equipment and personal flotation devices. Additionally, permits are required for commercial outfitters running trips on the Pahsimeroi River. These regulations help ensure the safety of all rafters and preserve the natural beauty of the river and surrounding wilderness.
Overall, the Pahsimeroi River is a thrilling whitewater run that offers challenging rapids and stunning scenery. With proper preparation and guidance, rafters of intermediate to advanced skill levels can safely enjoy the adventure of this Idaho gem.
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 Pahsimeroi River -- useful for spotting upstream pulses and gauging which tributary is contributing what.
| Streamgauge | Discharge | View |
|---|---|---|
| Big Lost River Bl Mackay Res Nr Mackay Id | 660 cfs | → |
| Big Lost River At Howell Ranch Nr Chilly Id | 1,140 cfs | → |
| Little Lost River Bl Wet Creek Nr Howe Id | 126 cfs | → |
| Nf Big Lost River At Wild Horse Nr Chilly Id | 325 cfs | → |
| Pahsimeroi River At Ellis Id | 235 cfs | → |
| Little Lost River Nr Howe Id | 109 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
- Confluence Of East And West Forks To Nf Boundary
- Headwaters To Confluence With West Fork
- Mahogany Creek
- Dry Creek
- Summit Creek
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 Pahsimeroi River 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 Pahsimeroi River
What's the optimal flow for Pahsimeroi River?
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 Pahsimeroi River.