About This Route
The Upper Yosemite Falls Trail is a strenuous 7.2-mile round-trip ascent from Yosemite Valley, gaining 2,700 feet to the top of North America's tallest waterfall at 2,425 feet. Starting near Camp 4, the trail features exposed switchbacks, shaded forests, and panoramic views, but loose rock and steep drop-offs demand respect. NPS data highlights this as a top site for ankle sprains and heat exhaustion, with YOSAR responding to dozens of calls each season.
Safety Considerations
Obey trail signs and stay back from edges; unsecured rockfall has injured hikers. Pack a minimum of one quart of water per two hours, more in summer heat exceeding 90 degrees Fahrenheit. Use sturdy footwear like Merrell Moab Ventilators for rocky terrain. Acclimatize to altitude if coming from sea level, as shortness of breath worsens above 6,000 feet. Group hikes should designate a meeting point like the trailhead; carry personal water and snacks. Reference REI's wilderness safety protocols: check weather via NPS apps, start early to avoid afternoon storms.
Essential Gear
ul>li>Headlamp and whistle for every hike/li>li>Osprey daypack with 4L water capacity/li>li>Sun hat, sunglasses, SPF 50 sunscreen/li>li>Layered clothing including fleece and shell/li>li>Personal locator beacon like SPOT/li>/ul>
Emergency Tips
For rockfall or injury, move to stable ground and use three whistle blasts. Activate PLB if no cell service; helicopters access upper sections. Prevent hyponatremia by balancing electrolytes with tablets.
Armed with these NPS-backed tips, conquer this epic trail responsibly, reducing your risk in a park with 800+ miles of paths.