The Whitewater River run Confluence With Sampson Creek To Downstream Crossing Of Western Siuslaw Nf Boundary, located in Oregon, has an ideal streamflow range of 600-1200 cubic feet per second (cfs). This class III-IV rated run covers a distance of 7 miles and has specific rapids and obstacles, such as Rapids 1-4, which include boulder gardens, steep drops, and technical chutes. There are also several logjams throughout the river, which can create hazards for paddlers.

In terms of regulations, the Whitewater River run is located within the Siuslaw National Forest, and visitors must obtain a Northwest Forest Pass or pay a daily fee to use the area. Camping is not allowed along the river banks, and visitors must pack out all trash. Additionally, the use of alcohol and drugs is prohibited on the river.

Overall, the Whitewater River run Confluence With Sampson Creek To Downstream Crossing Of Western Siuslaw Nf Boundary is a challenging and exciting whitewater experience for experienced paddlers. It is important to always check the streamflow conditions and regulations before embarking on this adventure.