The loop is about 5 miles and the elevation gain is less than 500 feet. I started the loop clockwise from the west parking area. This would be the steepest part of the trail and is made more difficult by about 2 inches of sand and rock. Once you get to the top elevation, it is then a nice gradual downhill all the way to the Hassayampa River bed (which was dry).
As you head back around to the road (slightly uphill), there is a good view of the valley to the west. It took less than 2 hours to hike the loop trail.
The forest roads are open to motorized vehicles (jeeps/ATVs) and you can see they are heavily used for that purpose. The trail is very lightly used for hiking, and if you head out early you can pretty much avoid the ATVs. I only saw one other group of hikers on the entire 5-mile trail!