The Arnett Creek - Forest Road #4 to Middle of Sec 7, T2S, R12E whitewater river run in Arizona is a 10 mile long segment of the Agua Fria River. The ideal streamflow range for this section is between 200-600 cfs. The class rating for this segment is Class III.

There are several notable river rapids and obstacles along the way. At the beginning of the run, there is a Class III rapid known as "The Ledges." Later on, there is a Class III+ rapid called "Vulture Eye." The run also has a few smaller rapids and wave trains, making it an enjoyable experience for intermediate paddlers.

It is important to note that the Arnett Creek run has specific regulations to protect the environment and wildlife. The area is designated as a Wilderness Area, so visitors must follow Leave No Trace principles. Additionally, motorized vehicles are not allowed within the area.

Overall, the Arnett Creek - Forest Road #4 to Middle of Sec 7, T2S, R12E run is a beautiful and exciting whitewater experience for intermediate paddlers. It is important to check the streamflow before heading out and to follow all regulations to protect the environment.