From Mather to Hetch Hetchy Reservoir and back

This route primarily follows a winding, tree-lined road that is mostly paved. The most notable section for cyclists is the 6-mile climb from the O'Shaughnessy Dam to the reservoir itself, which features an average gradient of 4.1% and includes some steeper segments.

While the 6-mile climb to the reservoir is sometimes described as 'fairly mild,' the full 'From Mather to Hetch Hetchy Reservoir and back' route involves an elevation gain of approximately 584 meters (1,916 feet) over nearly 29 kilometers. This makes it a moderate ride, and some assessments suggest it requires 'very good fitness' for the full distance, so it might be challenging for absolute beginners.

Parking for the Hetch Hetchy area is typically available near the entrance to the Hetch Hetchy Valley, which is the northernmost entrance to Yosemite National Park. Since the road dead-ends at the O'Shaughnessy Dam, parking is usually found before this point.

Cyclists can expect breathtaking views of rustic landscapes, towering domes, and dramatic waterfalls, such as Wapama Falls. The Hetch Hetchy Valley itself, now home to the Hetch Hetchy Reservoir, is known for its stunning vertical granite walls and natural beauty, often compared to the more famous Yosemite Valley.

While this is primarily a road cycling route, it passes near sections of other trails such as the Smith Peak Trail, Poopenaut Valley Trail, and Camp Mather Trails. These are typically hiking trails and not part of the paved cycling path.

No, dogs are generally not allowed on trails or unpaved roads within Yosemite National Park, including the Hetch Hetchy area. They are typically only permitted on paved roads, in developed areas, and in campgrounds, provided they are on a leash.

The Hetch Hetchy area is often less crowded than other parts of Yosemite National Park, offering a serene experience. The best time to cycle is typically during the spring and fall when temperatures are milder and the park is less congested. Always check road conditions, especially in winter or early spring, as snow can affect access.

Yes, the Hetch Hetchy area is part of Yosemite National Park, so standard park entrance fees apply. Depending on the time of year, a reservation or permit might also be required to enter the park, especially during peak seasons. It's advisable to check the official Yosemite National Park website for the most current entry requirements before your visit.

The Hetch Hetchy area is notable for being the northernmost and often less crowded entrance to Yosemite National Park. Its dead-end road at the O'Shaughnessy Dam contributes to a quieter atmosphere, allowing cyclists to immerse themselves in pristine wilderness with stunning views, without the heavy traffic found in other parts of the park.

Given the moderate difficulty and potential for varied weather, it's recommended to bring plenty of water, snacks, appropriate cycling gear (helmet, gloves), sun protection, and layers of clothing. A bike repair kit and a map or GPS device are also advisable, as services are limited once you enter the park.

Services within the Hetch Hetchy area itself are very limited. There are no cafes or restaurants directly at the reservoir. It's best to plan to bring all necessary food and drinks with you, or to find dining options in nearby towns like Groveland before or after your ride.