The ideal streamflow range for this river is between 500-2500 cubic feet per second (cfs), which occurs in the late spring and early summer months. The river is rated Class III-IV, making it a challenging run for experienced paddlers.
The segment mileage for the Sweetwater River is approximately 20 miles, and there are several notable rapids and obstacles along the way. The most famous of these is Devil’s Gate Rapid, which is a Class IV rapid with large waves and a technical entrance. Other notable rapids include the Three Forks Rapid, which is a Class III rapid with two distinct drops, and the Upper Narrows, which is a Class III+ rapid with challenging moves through a steep, narrow gorge.
There are specific regulations in place for the Sweetwater River area, including a permit system for commercial outfitters and a leave-no-trace policy for all visitors. Additionally, all boaters are required to wear personal flotation devices and have appropriate safety equipment on their watercraft.
| Last Updated | 2025-06-28 |
| River Levels | 463 cfs (5.06 ft) |
| Percent of Normal | 72% |
| Status | |
| Class Level | iii-iv |
| Elevation | ft |
| Streamflow Discharge | cfs |
| Gauge Height | ft |
| Reporting Streamgage | USGS 09213500 |