Hog Lake Plateau, west of the parking area. Plot is SE of the intersection between the dirt road that follows the power lines and the gravel road that runs E-W below the blue oak stands on the side slope of the plateau. The plot is on thin volcanic soil with significant cover of bedrock and cobbles. The herbaceous vegetation is dominated by two Navarretia species, one of them the uncommon (CNPS List 4) Navarretia heterandra.