Grouse Lake Access is a hiking-only trailhead located near Wrights Lake in the Desolation Wilderness, accessed via the 2-mile moderate-to-difficult Grouse Lake Trail from the Twin Lakes parking area.

The lake sits at 8,420 feet elevation and is accessible year-round, though winter access requires skis or snowshoes; wilderness permits are required for overnight use, with designated campsites marked by 4x4 posts around the lakeshore to protect fragile alpine vegetation.