Why go
The dam walkway reveals both the reservoir and the deep Tuolumne River gorge downstream. Use O'Shaughnessy Dam to connect O'Shaughnessy Dam's defining feature with Hetch Hetchy shoreline. A pause at O'Shaughnessy Dam works best when you compare O'Shaughnessy Dam's immediate foreground with the neighboring terrain before continuing.
What to look for
- The dam walkway reveals both the reservoir and the deep Tuolumne River gorge downstream.
- Notice how granite, water, vegetation, and elevation frame the view at this specific site.
Useful to know
- Check Hetch Hetchy road hours, trail closures, and heat before the drive.
- Carry water and do not enter the reservoir; the shoreline trail has exposed sections.
Your next visit
Estimated · Declared scenario and planning estimates; no live opening, weather, queue or booking service.
Outdoor visit · 30–45 min
World planning estimate; admission, opening, visit duration and access need checking.