The ideal streamflow range for this river is between 500-1500 cfs, which typically occurs in June and July. The Clarks Fork is rated as a Class IV-V river, with challenging rapids and obstacles throughout the 20 mile segment from the state line to the mouth of the Clarks Fork Canyon.
Some of the notable rapids on this river include the Terminal Velocity, a steep and narrow chute that leads into a large pool, and the Big Timber Rapid, a series of drops and waves that require precise maneuvering. Other obstacles on the Clarks Fork include boulder gardens and steep drops.
There are specific regulations that apply to the Clarks Fork, including a mandatory portage around the Honeymoon Rapid, which is considered too dangerous for boaters to navigate. Additionally, boaters are required to carry out all trash and waste, and overnight camping is only permitted in designated areas.
Overall, the Clarks Fork Of The Yellowstone provides a thrilling and challenging river run for experienced boaters looking for a wilderness adventure in Montana. It is important to respect the regulations and guidelines set forth by the managing agency to ensure the safety of all users and the preservation of the natural environment.
| Last Updated | 2025-06-28 |
| River Levels | 5230 cfs (5.33 ft) |
| Percent of Normal | 36% |
| Status | |
| Class Level | iv-v |
| Elevation | ft |
| Streamflow Discharge | cfs |
| Gauge Height | ft |
| Reporting Streamgage | USGS 06207500 |