The North Fork Cache Creek in California is a popular whitewater river run for kayaking and rafting enthusiasts. The ideal streamflow range for this river is between 500 and 1,500 cfs, which typically occurs during the spring months of March to May. The river is rated as class III-IV, meaning it has moderate to difficult rapids with high waves and narrow passages.

The segment mileage for the North Fork Cache Creek is approximately 12 miles, starting at the North Fork Campground and ending at the confluence with the Middle Fork Cache Creek. The river is known for its challenging rapids, including the infamous "Mother" and "Son of Mother" rapids. Other notable rapids include Carnivore, Pearly Gates, and Hell's Half Acre.

There are specific regulations that apply to the North Fork Cache Creek area. All boaters must obtain a permit from the Bureau of Land Management before launching on the river. Additionally, the use of alcohol and drugs is prohibited on the river. It is also important to note that the river flows through private land, so boaters must stay within the river channel and avoid trespassing.

Overall, the North Fork Cache Creek is a thrilling and challenging whitewater river run that requires skill and experience to navigate safely. Boaters must be aware of the ideal streamflow range, class rating, and specific regulations to ensure a successful and enjoyable trip.