Paddle Report

Rio Grande River Segment B river run

Colorado, USA Rio Grande River Segment B Class III-IV
Today high
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Tonight low
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Current flow
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% of normal
41%
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Linked streamgauge
-- cfs
Gauge height
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Rio Grande River Segment B -- Colorado paddle run
Rio Grande River Segment B Colorado · Rio Grande River Segment B
About this run

Rio Grande River Segment B

The Rio Grande River Segment B is a popular destination for whitewater rafting in the state of Colorado. It is located in the San Juan Mountains and offers a challenging and exciting experience for experienced rafters. The ideal streamflow range for this segment is between 500 and 1,200 cfs, which typically occurs during the months of May and June.

The segment is rated as a Class III-IV river, which means it has moderate to difficult rapids that require precise boat handling. The segment covers a distance of approximately 10 miles, and the run takes around 2-3 hours to complete. The river rapids and obstacles include Souse Hole, China Wall, and Los Pinos Falls.

There are specific regulations to the area that must be followed. A permit is required for all commercial and private use of the river. All boaters must wear a personal flotation device and have a whistle or other signaling device. Alcohol and drugs are not allowed on the river, and all trash must be packed out.

In conclusion, the Rio Grande River Segment B is a thrilling whitewater rafting experience in Colorado. The ideal streamflow range, class rating, segment mileage, specific river rapids/obstacles, and specific regulations to the area must all be considered before embarking on this adventure.
StateColorado
RiverRio Grande River Segment B
ClassIII-IV
Elevation7,499 ft
Current flow--
Percent of normal41%
StreamgageUSGS 08240000
Latitude37.2360°
Longitude-105.7408°
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 Rio Grande River Segment B -- 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 Rio Grande River Segment B 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 Rio Grande River Segment B

What's the optimal flow for Rio Grande River Segment B?

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.

More river runs

Other runs near here

Snoflo-tracked paddle runs within driving distance of Rio Grande River Segment B.

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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