Paddle Report

Source To Trailhead river run

Wyoming, USA Little Greys River Class III-IV
Today high
--
Tonight low
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Current flow
--
% of normal
87%
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Linked streamgauge
-- cfs
Gauge height
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Source To Trailhead -- Wyoming paddle run
Source To Trailhead Wyoming · Little Greys River
About this run

Source To Trailhead

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The Whitewater River Run Source to Trailhead is a popular river run in Wyoming, known for its exciting rapids and stunning scenery. The ideal streamflow range for this run is between 800 and 2,000 cfs, depending on the season and recent weather conditions. The class rating for this run is mostly Class III, with some Class IV rapids and obstacles scattered throughout the course. The segment mileage for this run is approximately 12 miles, starting at the source of the Whitewater River and ending at the Trailhead.

Some of the specific rapids and obstacles you can expect to encounter during this run include the Ledge Drop, the Pinball Rapid, and the Roller Coaster. These rapids are known for their challenging features, such as steep drops, large waves, and tight channels. If you're new to whitewater rafting, it's important to note that this run can be quite technical and requires some experience and skill to navigate safely.

In addition to the rapids themselves, there are also specific regulations to be aware of when rafting this run. For example, all participants must wear a life jacket and helmet, and commercial operators must have a valid permit from the National Park Service. Additionally, there are restrictions on the number of guests per raft, and alcohol is not allowed on the river.

Overall, the Whitewater River Run Source to Trailhead is a thrilling and challenging river run that's suitable for experienced rafters looking for an exciting adventure. As with any whitewater activity, it's important to exercise caution and follow all safety regulations to ensure a fun and safe trip.
StateWyoming
RiverLittle Greys River
ClassIII-IV
Elevation5,696 ft
Current flow--
Percent of normal87%
StreamgageUSGS 13022500
Latitude43.0704°
Longitude-110.6886°
Detailed forecast

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.

Hourly detail

Next 5 days, hour by hour

Temperature line with weather symbols on top, snow + rain accumulation as columns, humidity as a dotted line.

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Deep dive

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.

TimeConditionTemp (°F)Snow (in)Rain (in)Humidity (%)Wind (mps)Wind dir
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Long-term outlook

15-day temperature & precipitation

Daily temperatures, snow, and rain projected over the next two weeks -- the upstream story that drives next week's flows.

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Regional flow

Regional streamflow levels

USGS streamgauges around Source To Trailhead -- useful for spotting upstream pulses and gauging which tributary is contributing what.

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 Trailhead 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.

FAQ

About Source To Trailhead

What's the optimal flow for Source To Trailhead?

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.

Premium feature

Favorites and custom alerts are part of Snoflo Premium. Save runs, set discharge thresholds, and get push notifications when flows hit your window.

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Manage alerts in the Snoflo app

Custom push alerts are configured in the iOS app -- favorite this run, set a discharge threshold (e.g. "alert me at 600 cfs"), and you'll get a push the moment the gauge crosses.

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