The trail starts off of Sherwin Creek Road (a gravel road) there is parking here, but it's also rideable from town. The trailhead starts at 7856ft elevation and begins in a sandy sagebrush area. About a half mile into the initial climb you'll finally hit the treeline. From here, the terrain is really nice with some beautiful vistas.
After a mile into Mammoth Trail, you'll be on a semi-technical bench-cut trail. After 2.5 miles the trail pops out at Old Mammoth road.