4.6
(5983)
13,937
riders
04:08
73.3km
1,570m
Road cycling
Cycle the difficult 45.5-mile Hardin Flat Road from Hetch Hetchy in Yosemite National Park, gaining 5161 feet through forested landscapes.
Last updated: February 26, 2026
Tips
Your route passes through protected areas
Please check local regulations for:
Waypoints
Start point
Parking
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1.23 km
Highlight • Lake
Tip by
5.48 km
Highlight (Segment) • Trail
Tip by
73.3 km
End point
Parking
Way Types & Surfaces
Way Types
59.9 km
10.2 km
3.08 km
< 100 m
Surfaces
65.2 km
8.08 km
< 100 m
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Elevation
Highest point (1,560 m)
Lowest point (1,060 m)
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Weather
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Today
Monday 6 July
29°C
12°C
0 %
Additional weather tips
Max wind speed: 12.0 km/h
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This route was planned by komoot.
The Hetch Hetchy area, including Hardin Flat Road, is generally accessible year-round, but the best time for cycling is typically spring through fall. Spring offers lush greenery and powerful waterfalls, while fall provides pleasant temperatures and fewer crowds. Always check current weather and road conditions before you go, especially during winter months when snow or ice can affect the higher elevations.
The Hardin Flat Road itself is paved, making it suitable for a racebike. However, the overall route, especially if you include a loop with Evergreen Road, is considered a challenging ride with a lot of climbing. While the Hetch Hetchy Dam climb is relatively mild, expect significant gradients on other sections. Be aware that there are also short dirt spur roads leading off Hardin Flat Road that are not suitable for road bikes.
Yes, this route is located within Yosemite National Park, so a park entrance fee is required. You can find detailed information about current fees and any necessary reservations or permits on the official National Park Service website: nps.gov. It's always a good idea to check their site before your visit for the most up-to-date requirements.
Parking is available at the Hetch Hetchy Entrance Station. From there, you can access the Hetch Hetchy Road, which leads to the reservoir and connects to Hardin Flat Road. For more detailed parking information, refer to the official Yosemite National Park website: nps.gov.
No, dogs are generally not permitted on trails within Yosemite National Park, including the Hetch Hetchy area and Hardin Flat Road. Leashed dogs are allowed in developed areas, on paved roads, and in campgrounds, but not on unpaved trails or wilderness areas. Always check the latest pet regulations on the official park website before your visit.
As you cycle, you'll pass through a beautiful forested area. The Hetch Hetchy Road section offers stunning views of the Hetch Hetchy Reservoir and several waterfalls, including Wapama Falls and Tueeulala Falls. The Hetch Hetchy Road itself is a scenic highlight, often less crowded than other parts of Yosemite.
Yes, while primarily following Hardin Flat Road, the route also briefly touches upon sections of other trails such as Smith Peak Trail, Camp Mather Trails, Hill Yurt Trail, Poopenaut Valley Trail, Small Falls Trail, Aspen Valley Road, River Trail, Bunkhouse Trail, Carlon Falls Trail, and Canyon Trail.
The full route, covering approximately 73 kilometers (45 miles) with significant elevation gain, is estimated to take around 4 hours and 9 minutes for an experienced racebike cyclist. This duration can vary based on your fitness level, speed, and how often you stop to enjoy the scenery.
Given its 'difficult' rating and 'a lot of climbing,' this route is generally not recommended for beginner road cyclists. It's better suited for experienced riders looking for a challenging and rewarding cycling experience with significant elevation changes.
While the Hetch Hetchy Entrance Station and Dam area may offer some facilities, amenities along Hardin Flat Road itself are minimal. It's crucial to carry sufficient water, snacks, and any other supplies you might need for the duration of your ride. Plan to be self-sufficient.
The Hetch Hetchy area offers a more serene and less crowded cycling experience compared to other parts of Yosemite. The Hetch Hetchy Road has vehicle length restrictions, which can contribute to a more pleasant cycling environment by limiting larger vehicles. You'll also find proximity to dispersed camping areas, offering a quiet, natural setting.
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