Take highway 87 north into Payson from Phoenix. Go east on 260 for about 17 miles. Look for the sign for Kohl's ranch/ Tonto Fish Hatchery. Go left towards the fish hatchery. Park in the area over the bridge and Horton Creek trail is right there.
Horton Creek trail in northern Arizona east of Payson. This is one of my very favorite places in Arizona. I love visiting it in summer as it is a great way to beat the extreme heat in central Arizona and the scenery is fantastic as well.