From its trailhead off Sherwin Creek Road, just east of the Sherwin Creek Campground, the Valentine Lake Trail climbs steeply from sagebrush chaparral through open, old-growth Jeffrey pine forest to a bench at the base of the Sherwin Range and a junction with the Sherwin Lakes Trail. The trail then follows the creek into the John Muir Wilderness. Return the way you came or make a loop by way of Sherwin Lakes. Enjoy the expansive views back across the Mammoth Creek drainage and the Long Valley Caldera.