Fern Lake Trailhead (8,170 ft): 4:49 am
Fern Lake (3.8 miles from trailhead, 9,540 ft): 6:18 am (1 hour 29 minutes from trailhead)
Odessa Lake (4.8 miles from trailhead, 10,020 ft): 6:57 am (39 minutes from Fern Lake)
Tourmaline Lake (5.4 miles from trailhead, 10,580 ft): 7:30 am (33 minutes from Odessa Lake)
Gabletop summit (11,939 ft): 8:24 am (54 minutes from Tourmaline Lake)
Knobtop summit (12,331 ft): 8:54 am (30 minutes from Gabletop summit)
Fern Lake Trailhead (8,170 ft): 11:57 am (3 hours 3 minutes from Knobtop summit reversing route)
Total car-to-car (includes breaks): 7 hours 8 minutes