Tenmile Creek is located in California and is a popular whitewater river run for kayaking and rafting enthusiasts. The ideal streamflow range for this river is between 200-600 cfs, with 400 cfs being the optimal range.

The class rating for Tenmile Creek is Class III-IV, with some portions of the river being more challenging than others. The segment mileage for the river is approximately 6 miles, which can take up to 3-4 hours to complete depending on the skill level of the paddlers.

The river features several challenging rapids and obstacles, such as "Rock Garden", "Triple Threat", and "Dead Tree Corner". These rapids require advanced paddling skills and experience to navigate safely.

In terms of specific regulations, the Tenmile Creek river run requires a permit from the Bureau of Land Management (BLM) and has a limited season from April to July. Additionally, all paddlers are required to wear a personal flotation device (PFD) and helmets are strongly recommended.

Overall, Tenmile Creek is a challenging and exciting whitewater river run that requires advanced paddling skills and experience. It is important to follow all regulations and safety guidelines to ensure a safe and enjoyable experience on the river.