Along CA-89, look for the sign of Fowlers Campground and the Lower Falls. After you turn in, make a left turn at the first paved road which is called the Middle Fall Rd. About 1 mile down the road, you will see a sign for the parking lot of Middle Fall Overlook. You will hike down to the fall. That's where I took this picture.
There are three named falls along McCloud river within the Shasta-Trinity National Forest area. The middle one is largest/widest of all, which is about 100 ft wide and 50 ft high. You can visit it while driving from more famous Burney Falls at McArthur-Burney Falls Memory SP to Mount Shasta.