The ideal streamflow range for this run is between 300 and 600 cfs, with higher flows making the rapids more challenging. The run is rated as a Class III to IV+ depending on the segment, with several challenging rapids and drops such as the “Eddie Mayhem” and “The Slot.”
The total mileage of the river run is approximately 9.5 miles, starting at the Headwaters South of Flint Mountain and ending at the St. Mary's Wilderness Boundary. This run is divided into several segments, with the upper section being the most challenging due to its steeper gradient and more technical drops.
Kayakers and rafters should be aware of specific regulations in the area, such as the requirement for a permit to access the St. Mary's Wilderness Area. Additionally, there are restrictions on the number of people allowed in a party, and camping is only allowed in designated areas.
| Last Updated | |
| River Levels | 17 cfs ( ft) |
| Percent of Normal | +100% |
| Optimal Range | 300-600 cfs |
| Status | Too Low |
| Class Level | iii |
| Elevation | ft |
| Streamflow Discharge | cfs |
| Gauge Height | ft |
| Reporting Streamgage | USGS 01624800 |