Golden State Highway is closed-off at Frenchman's Flat Day Use Area. From here, it's 1.7 miles of road walking through Piru Gorge to the start of the Slide Mountain Trail.Crossing Piru Creek.Slide Mountain comes into view on the left.Start of the Slide Mountain Trail.View back.The trail cuts across a chaparral slope.Slide Mountain Lookout on the right.View back. Pyramid Dam is on the left.Making a long switchback to gain the ridge.Gaining the ridge. On the left, a lookout with great views into the Sespe Wilderness.From the lookout, closeup on the snow-covered Cobblestone Mountain to the west.Continuing north along the ridge.The trail alternates between the west and east side of the ridge.View back.Short set of switchbacks to regain the ridge crest.On the east side of the ridge, view toward Pyramid Lake.View back toward the saddle (right).The trail spirals up to the summit.First glimpse of the lookout tower from the trail.Slide Mountain Lookout. It was vacant at the time. The rooftop can be accessed via a staircase then ladder.From the rooftop of Slide Mountain Lookout, view northwest toward White Mountain. In the distance are Cobblestone Mountain (left) and Frazier Mountain (right).View north toward Pyramid Lake.View south.