Explore through a variety of landscapes, from narrow rocky trail traveling through oak forests to sweeping views across high grasslands.

East of Napa State Hospital in the southern foothills of Napa Valley, this trail offers a variety of surfaces and experiences from narrow, often rocky trail through Skyline Wilderness Park to open, sloping paths through Suscol Headwaters Park. After a steep climb in the first mile at the northern end, the trail ambles through oak forests and high grasslands to views of North Bay marshes and mountains and then continues beside a perennial stream to the far reaches of the park. In October 2017, the Atlas Fire burned through most of Skyline Wilderness Park and damaged parts of the Ridge Trail. In the months following the fire, hundreds of damaged trees were removed. The trail then arrives to Suscol Headwaters Park, which opened in 2020 and provides sweeping views of Mount St. Helena to the north and the San Francisco skyline to the south. Find beautiful wildflower displays in the springtime. Start early, particularly on warm days, and take plenty of water.

This trail description is excerpted from the 2019 Guidebook. For details on all trails, trailheads and more buy the book from Wilderness Press.

For more resources to plan your trip, visit our Trail Tools page.