The ideal streamflow range for this section of the river is between 400 and 800 cubic feet per second (cfs). The class rating is between III and IV, making it suitable for intermediate to advanced paddlers. The segment mileage for this run is approximately 12 miles.
There are several notable rapids and obstacles along the route, including "Hole in the Wall," "Wanda's Revenge," and "Sledgehammer." The most challenging section of the run is a 2-mile stretch known as "The Narrows," which contains a series of technical rapids and boulder gardens.
There are specific regulations that paddlers must follow in this area. Permits are required for commercial outfitters, and self-guided paddlers are required to register at the trailhead. Additionally, the use of personal flotation devices (PFDs) is mandatory, and all paddlers are encouraged to carry a first aid kit and a rescue throw bag.
| Last Updated | 2025-11-21 |
| River Levels | 43 cfs (2.0 ft) |
| Percent of Normal | 113% |
| Status | |
| Class Level | None |
| Elevation | ft |
| Streamflow Discharge | cfs |
| Gauge Height | ft |
| Reporting Streamgage | USGS 08254000 |
| Location | Reservations | Toilets |
|---|---|---|
Little Costilla Low Impact Camp
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Little Costilla Camp
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Ash Mountain Camp
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Cimarron Campground
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NFS Cimarron Campground
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Middle Ponil Camp
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