Mather to Hetch Hetchy Reservoir

This cycling route is considered quite challenging, requiring a very good level of fitness. You'll encounter significant elevation gains, including a climb of about 6 miles gaining over 1,300 feet with an average grade of 4.1%. While mostly paved, some sections might be unpaved and demanding.

The route offers stunning views of the Hetch Hetchy Valley, often compared to Yosemite Valley. You'll see the reservoir itself, and during spring and fall, impressive waterfalls like Wapama Falls and Tueeulala Falls. A unique highlight is cycling across the O'Shaughnessy Dam. The Hetch Hetchy Road itself is also very scenic, winding through tree-lined landscapes.

Spring and fall are generally the best times to visit. During these seasons, water levels are higher, making the waterfalls more spectacular, and the weather is typically more pleasant for cycling. The Hetch Hetchy area also tends to be less crowded than other parts of Yosemite National Park, offering a more tranquil experience.

Yes, as this route is within Yosemite National Park, you will need to pay the standard Yosemite National Park admission fee. This can be paid per vehicle or with a park pass. No specific cycling permits are mentioned beyond the park entrance fee.

Access to the Hetch Hetchy area, including parking, is typically at the Hetch Hetchy Entrance Station. The Hetch Hetchy Road is the only way to reach the trailheads and the dam in this part of the park. Specific parking details should be confirmed with Yosemite National Park directly.

No, dogs are generally not allowed on trails or unpaved roads within Yosemite National Park, including the Hetch Hetchy area. They are usually restricted to paved roads, developed areas, and campgrounds. Always check the latest Yosemite National Park regulations regarding pets before your visit.

The route is approximately 29 kilometers (18 miles) long. Given its difficult grading and significant elevation gain, it typically takes around 2 hours to complete, but this can vary greatly depending on your fitness level and how often you stop to enjoy the views.

The Hetch Hetchy area is less developed than other parts of Yosemite. While there are basic facilities, extensive amenities like cafes or accommodations are limited directly at the reservoir. It's advisable to carry sufficient water and snacks, and plan for any major needs in nearby towns or the Mather area.

Due to its 'difficult' grading and significant elevation changes, this route is not recommended for beginners or young children. It requires a very good level of fitness and experience with challenging climbs. Families looking for easier cycling options might need to explore other areas.

Given the challenging nature and remote feel of the route, you should bring plenty of water, high-energy snacks, a repair kit for your bike, and appropriate cycling gear for varying weather conditions. Sun protection is essential, and layers are recommended. A map and navigation device are also wise.

Yes, while primarily following the Hetch Hetchy Road, the route also passes through sections of the Smith Peak Trail, Camp Mather Trails, and Poopenaut Valley Trail.