The Middle Santiam River is an excellent destination for whitewater enthusiasts in Oregon. The ideal streamflow range for this river is between 800 and 2,000 cubic feet per second (cfs). The river is rated as Class III to IV, with some challenging rapids and obstacles such as the "Gorilla Rapid" and "The Elevator."

The Middle Santiam River is divided into several segments, with the uppermost section running for approximately 10 miles and the lower section running for around 6 miles. The entire river offers breathtaking views of the surrounding forest and wildlife.

There are specific regulations in place for the Middle Santiam River, including a prohibition on camping within 200 feet of the river and a requirement for all boaters to wear a personal flotation device (PFD) at all times on the river. Additionally, the river is closed to all boating during the winter months.

Overall, the Middle Santiam River is a thrilling destination for whitewater enthusiasts seeking a challenging and scenic run. It is important to check current streamflow levels and adhere to all regulations to ensure a safe and enjoyable experience.