The Lower Salt River Nature Trail at Tonto National Forest in Fort McDowell, Arizona is an easy 0.9 mile loop trail that runs along the Salt River and is a great place to look for wild horses.
The trailhead can be found at the northwest corner of the first main parking lot at the Phon D Sutton Recreation Area. The trail heads west along the river and loops back after about a half mile.
There are a few trails that connect both sides of the loop, so you can shorten the hike by heading back on one of these bisecting trails or complete the entire loop for just under a 1 mile hike.
Wild horses: This trail can also be used to search for wild horses as the horses use this trail to drink from the river; however, it's not guaranteed you'll see a wild horse. The best time of day to see them is within the first couple of hours after sunrise or the first couple of hours before sunset.