2025-12-07T08:00:00-07:00
...SERIES OF WINTER STORMS TO AFFECT THE MOUNTAINS AND PASSES THROUGH THE SATURDAY... .The first round of heavy snow is expected to last through early Friday morning and will primarily focus on the mountains of central and southwest Montana with 4 to 8 inches possible along the mountain passes including Bozeman and Kings Hill Pass. A period of lighter snowfall is expected Friday morning and afternoon. The second and more widespread round of heavier snowfall is expected to arrive Friday evening and continue into Saturday evening with an additional 6 to 12 inches possible over the passes and higher amounts above pass level. * WHAT...Heavy snow possible. Total snow accumulations between 6 and 12 inches possible. Winds could gust as high as 55 mph. * WHERE...The Continental Divide along the Rocky Mountain Front. * WHEN...From Friday afternoon through Sunday morning. * IMPACTS...Tire chains may be required for some vehicles if traveling through mountain passes. Strong winds could cause tree damage.
Summary
The ideal streamflow range for this section of the river is between 800 and 1500 cubic feet per second (cfs), with higher flows in the spring due to snowmelt. The segment mileage is approximately 12 miles with a class rating of III-IV.
There are several notable rapids and obstacles along this section of the river, including Cut Bank Rapid, which has a large rock in the middle of the channel, and a steep drop at the bottom. Another challenging rapid is Deadman's Eddy, which has a sharp turn followed by a narrow chute. The river also features several large boulders and narrow channels that require careful navigation.
Visitors to this area should be aware of specific regulations, including the requirement to obtain a permit from the U.S. Forest Service before launching on the river. Additionally, visitors should follow Leave No Trace principles, including packing out all trash and minimizing impact on the surrounding wilderness area.
Overall, the Whitewater River Run Wilderness Boundary to South Fork Sun River offers a thrilling and challenging whitewater experience for experienced rafters, with specific regulations in place to protect the natural environment.
River Run Details
| Last Updated | 2025-12-01 |
| River Levels | 1560 cfs (4.07 ft) |
| Percent of Normal | 648% |
| Status | |
| Class Level | None |
| Elevation | ft |
| Streamflow Discharge | cfs |
| Gauge Height | ft |
| Reporting Streamgage | USGS 06079000 |
Weather Forecast
Nearby Streamflow Levels
Area Campgrounds
| Location | Reservations | Toilets |
|---|---|---|
Mortimer Gulch Campground
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Mortimer Gulch
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Home Gulch
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Home Gulch Campground
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Benchmark Campground
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Benchmark
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Wilderness Boundary To South Fork Sun River, Sec. 26, T22N, R10W
Headwaters, Sec. 4, T18N, R10W To North Fork Sun River, Sec. 26, T22N, R10W
Fool Creek, Sec. 24, T25N, R11W To Wilderness Boundary