Bog Spring to Sylvester Spring Loop is a 4.7 mile lightly trafficked loop trail located near Sonoita, AZ that offers scenic views and is rated as moderate. The trail is primarily used for hiking and horses and is accessible year-round. Horses are also able to use this trail.
You'll enjoy plenty of shade on this trail if you start early. Live oak, pine, and a few juniper line the trail. and large sycamore in the moist areas around Bog and Kent springs will keep you cool. You gain about 2,000 feet in about two miles, so be prepared for a steep ascent and descent. Trekking poles help. Although four hours might seem slow for 4.4 miles, it could take that long. And you can continue climbing at Kent Springs to reach all the way to the crest trail if you have the time and the water.
The Bog Spring part of the trail is more attractive than the Sylvester Spring section (which is an old road). However, parts are a narrow trail scraped into the side of the mountain. So it is steep AND vertiginous. Only saw two other hikers on the trail.