Hyalite Canyon South Road is a pleasant 2-mile trail near the Hyalite Reservoir in the Custer Gallatin National Forest. The road is easy flat packed dirt with plenty of potholes, a few of them large. The start of the trail offers great views of the head of the reservoir where the Hyalite Creek flows in. Continuing down the road, there are excellent views of peaks and cliffs. The mountain seems to rise thousands of feet from the ground directly in front of you. Several campsites along the road are situated at the bank of the creek. Many are marked as designated campsites with metal fire rings and barbeque grates. There is also plenty of access for fly fishing along the trail. The end of the road is a large parking lot with several hiking trailheads, one of which is a short hike to scenic Grotto Falls. Overall this trail is a relaxing, scenic drive with unparalleled views.