Approximately 38 miles (61 km) in length, the trail is used by hikers and pack trains to experience some of the most spectacular scenery in the western United States.
The southern end of the trail is just north of Harrison Pass, at approximately 40°20.2'N and 115°30.1'W and an elevation of 7,300 feet (2,200 m).
From there it climbs northward around Green and Tipton Peaks, while crossing the three upper forks of Smith Creek.
After crossing over the top of Wine's Peak 10,900 feet (3,300 m), it finally descends again into forested areas.
A short side trail leads to North Furlong Lake, a common campsite.