Paddle Report

Blakley Creek, Sec. 26, T4s, R12e To Miller Creek, Sec 13, T4s, R21e river run

Montana, USA Boulder River Class III-IV
Today high
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Tonight low
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Current flow
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% of normal
57%
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Linked streamgauge
-- cfs
Gauge height
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Blakley Creek, Sec. 26, T4s, R12e To Miller Creek, Sec 13, T4s, R21e -- Montana paddle run
Blakley Creek, Sec. 26, T4s, R12e To Miller Creek, Sec 13, T4s, R21e Montana · Boulder River
About this run

Blakley Creek, Sec. 26, T4s, R12e To Miller Creek, Sec 13, T4s, R21e

The Blakley Creek to Miller Creek run is a popular whitewater destination in Montana, offering a challenging and scenic adventure for experienced paddlers. The ideal streamflow range for this section is between 500 and 2,000 cfs, depending on the season and recent precipitation. At lower flows, the rapids become more technical, while at higher flows, they become bigger and faster.

This section of the river is rated as class III-IV, with some difficult rapids and obstacles to navigate. One of the most challenging rapids is called "The Notch," which requires precise maneuvering to avoid a dangerous undercut rock. Other notable obstacles include "Ledge Hole" and "Pinball."

The segment mileage for this run is approximately 12 miles. It begins in Section 26, T4S, R12E, and ends in Section 13, T4S, R21E. The scenery along the way is breathtaking, with towering cliffs, dense forests, and occasional wildlife sightings.

There are specific regulations to be aware of when paddling this section of the river. Boats must have a current Montana Invasive Species Prevention Pass, and all gear must be thoroughly cleaned and dried before entering the water to prevent the spread of invasive species. Additionally, there are restrictions on camping and fires in some areas, so it is important to check with local authorities before setting up camp.

Overall, the Blakley Creek to Miller Creek run is a challenging and rewarding whitewater experience in Montana. Paddlers should be experienced and well-prepared for the rapids and obstacles they will encounter, and should always follow local regulations to protect the environment and ensure the safety of all involved.
StateMontana
RiverBoulder River
ClassIII-IV
Elevation4,554 ft
Current flow--
Percent of normal57%
StreamgageUSGS 06192500
Latitude45.4390°
Longitude-110.1905°
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 Blakley Creek, Sec. 26, T4s, R12e To Miller Creek, Sec 13, T4s, R21e -- 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 Blakley Creek, Sec. 26, T4s, R12e To Miller Creek, Sec 13, T4s, R21e 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 Blakley Creek, Sec. 26, T4s, R12e To Miller Creek, Sec 13, T4s, R21e

What's the optimal flow for Blakley Creek, Sec. 26, T4s, R12e To Miller Creek, Sec 13, T4s, R21e?

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.