Hetch Hetchy Road

The Mather to Hetch Hetchy Reservoir route offers a challenging yet incredibly scenic touring cycling experience in the quieter northern part of Yosemite National Park. You'll pedal along a winding, tree-lined paved path, gradually climbing towards the impressive O'Shaughnessy Dam, which marks the end of the road for vehicles. Expect dramatic granite walls and picturesque views of the reservoir, framed by geological wonders like Hetch Hetchy Dome and Kolana Rock, especially vibrant with waterfalls in spring. This difficult 18.1-mile (29.1 km) ride involves 1905 feet (581 metres) of elevation gain and takes about 2 hours and 2 minutes, making it a substantial workout with a big payoff.

Planning your visit means accounting for standard Yosemite National Park entrance fees. This area is notably less crowded than other parts of Yosemite, offering a more tranquil experience. The best time to cycle Hetch Hetchy is in the spring, when snowmelt ensures the waterfalls are at their most powerful and impressive. Since the O'Shaughnessy Dam is a dead-end for vehicles, the road remains peaceful, perfect for an immersive ride.

Hetch Hetchy Valley, now home to the reservoir, is a vital clean drinking water source for millions in the San Francisco Bay Area. It's often compared to the more famous Yosemite Valley due to its towering granite cliffs and domes, providing a similar sense of awe but in a more secluded setting. This route offers a unique opportunity to explore Yosemite's natural beauty away from the main tourist hubs, making it a true hidden gem for cyclists.

Cycle 51.8 miles through Yosemite National Park, from Tuolumne Grove's giant sequoias to O'Shaughnessy Dam, gaining 5548 feet.