The Shields Peak Trail is a lengthy 12.2-mile hike through the San Gorgonio wilderness and the San Bernardino Divide. The trail is difficult to hike along, so make sure you and your pup are well prepared and geared up for this hike. With a 4,107-foot elevation gain, you both will be feeling the burn on this one. You will pass a few creeks while you hike, but locals recommend to bring plenty of water when you are out on this trail with your furry pal. If you're looking for something a little less difficult, try out the Dry Creek Trail. With 11-miles of hiking and 2,217-foot elevation gain, your dog will love the great workout he will get on the loop route style hike.