There are small seasonal streams, including one at mile 2.4 (9,146), and potential campsites in the next two miles. Intersect the Payne Creek Trail on the right at mile 3.3 (9,307) and continue straight ahead. Cross the headwaters of Craig Creek at mile 4.5 (9,375). There are good campsites nearby. At mile 5.6 (9,897), reach an intersection where the trail leaves the old road. Take a left onto the single-track trail and begin a steep climb. Reaching a saddle at mile 7.4 (10,483), the trail rejoins the old road, begins descending, and crosses a small spring at mile 8.0 (10,343), then leaves the wilderness area at mile 8.2 (10,314). After entering a large, grassy valley, follow the North Fork of Lost Creek upstream. There are many potential campsites along the way. The Brookside-McCurdy Trail joins The Colorado Trail at mile 8.9 (10,199) by a trail register. Then at mile 9.2 (10,249) cross a seasonal stream. At mile 11.3 (10,428), the Brookside-McCurdy Trail goes to the right, while the CT bears to the left. Leave the valley at mile 14.5 (10,929) and enter the forest at the head of the North Fork of Lost Creek. The trail descends steeply from here. After crossing a small stream at mile 16.5 (10,200), hike a short distance to an intersection with Long Gulch Trail above FS Rd 56 at mile 16.6 (10,176) and the end of Segment 4. For trailhead parking, take Long Gulch Trail 0.2 mile downhill (south).