The North Fork of the Siletz River is a popular whitewater river run located in the state of Oregon. The ideal streamflow range for this river is between 600 and 1,000 cubic feet per second. The river is rated as a Class III-IV run, which means it is moderately difficult and requires good paddling skills. The segment mileage for the North Fork Siletz River is approximately 9.5 miles.

The river contains several specific rapids and obstacles, including "The Wagon Wheel," "The Plunge," and "The Gorge." "The Wagon Wheel" is a Class III rapid that requires precise maneuvering through several large boulders. "The Plunge" is a Class IV rapid that features a steep drop and requires expert paddling skills. "The Gorge" is another Class III rapid that features tight corners and requires good navigation skills.

There are specific regulations for the North Fork Siletz River area. All boaters are required to wear personal flotation devices (PFDs) at all times while on the river. In addition, all boaters are required to carry a whistle and a throw rope. The river is also closed to boaters during the winter months, from November 1 to April 30, due to hazardous water conditions.

In conclusion, the North Fork Siletz River is a challenging and exciting whitewater river run located in Oregon. With ideal streamflow ranges between 600 and 1,000 cubic feet per second and featuring Class III-IV rapids such as "The Wagon Wheel," "The Plunge," and "The Gorge," this river run is a favorite among experienced paddlers. However, it is important to adhere to specific regulations such as wearing PFDs and carrying a whistle and a throw rope for safety reasons.