Access this trail via the Sourdough Ridge Trail from the Sunrise Visitor Center. The trail to Mt. Fremont traverses the western side of a rocky ridge for 1.4 miles to a fire lookout built in the 1930s.
Beginning with a slight descent and flat section, the trail quickly transitions to a steep ascent to gain the ridge. Once atop the ridge the trail traverses to the north and eventually terminates at the Mt. Fremont fire lookout. On a clear day runners can enjoy superb views of Mount Rainier, the Cascades, and the Olympic Mountains. North of the lookout lies the spectacular meadows of Grand Park.