Ridgeline Ramblers
Mount Saint Helena
Climb above Wine Country for sweeping views across the Coast Ranges.
Quest challenge 4/10 · Worthy Quest
Quest estimate for the described approach: endurance, altitude, and technical terrain combined. Conditions can change the difficulty. This is not an AllTrails or climbing grade.
Meet the mountain
The approach: Robert Louis Stevenson Memorial Trail and summit fire road from Highway 29
Summit finish: Mount Saint Helena’s summit at the end of the summit-road approach.
A Wine Country landmark with an expansive Coast Range panorama. From the Highway 29 park access, use the memorial trail and summit fire road. State Parks summarizes the summit hike as about five miles each way; check the park map for your exact approach. The exposed upper road can be hot, and the park has no potable water.
Carry water for the whole outing and plan around the day’s heat and park hours.
A SUMMIT QUEST TALL TALE · FICTION
The cloud tasting
A cloud critic declared the afternoon sky had notes of oak, sunshine, and slightly damp socks. The other clouds nodded thoughtfully. None of them had any idea what oak was.
Explore the Field Guide’s peak legends →Before you set out
Every good quest starts with a little map time. Explore these route guides and check the latest updates before setting a date.
Sources reviewed 2026-09-08. Check the links for current conditions. The approach above explains our challenge rating; logging this peak does not assign that route to your outing.
Robert Louis Stevenson State Park ↗
Summit hike, landscape, and seasonal context.
Opens in a new tabNapa Outdoors route and park map ↗
The park operator’s maps and current visitor information.
Opens in a new tabFind AllTrails routes ↗
Search for an approach that matches your plan.
Opens in a new tabFind recent trip reports ↗
Check dates and route choices; reports do not replace current land-manager information.
Opens in a new tab“Find AllTrails routes” opens a Google search restricted to AllTrails trail pages, not a selected route. Completion is tracked in Summit Quest and does not sync with AllTrails.