Highlight • Natural Monument
Road cycling
5.0
(1)
Tunnel Rock is a distinctive natural monument located within the majestic Sequoia National Park in California, nestled in the southern Sierra Nevada mountains. Standing at an elevation of approximately 597 meters (1,958 feet), this impressive granite formation is a unique blend of natural geology and human ingenuity. It's easily accessible along the Generals Highway, near the park's Ash Mountain Entrance and the Foothills Visitor Center, making it a prominent landmark close to the town of Three Rivers.
Visitors are consistently…
Cycling is not permitted at this location
This Highlight is in a protected area
Please check local regulations for:
Tips
June 21, 2024
Road cycling

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Nearby routes
Best routes near Tunnel Rock

2
riders
66.0km
03:22
1,010m
1,010m
This difficult 41.0 miles (66.0 km) road cycling route from Lake Kaweah to Hospital Rock gains 3315 feet (1010 metres) in Sequoia National P

15
riders
Hard road ride. Very good fitness required. Some segments of this route may be unpaved and difficult to ride.
Details
Informations
Elevation 600 m
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Max wind speed: 9.0 km/h
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Tunnel Rock is a remarkable granite formation, showcasing the powerful geological forces that shaped the Sierra Nevada mountains. While the arch itself is natural, the tunnel was carved through the massive granite boulder by human engineering in 1938. It offers a unique insight into both natural geology and historical infrastructure development within national parks.
Tunnel Rock itself is a roadside attraction along the Generals Highway, with a paved path leading directly through the old roadway beneath it. While there isn't a dedicated 'Tunnel Rock trail' for hiking, its convenient location makes it an excellent starting point or stopover for exploring numerous other trails and viewpoints within the surrounding Sequoia National Park. You can find a variety of routes for hikers, cyclists, and trail runners on komoot to plan your adventure.
There is accessible parking available directly near Tunnel Rock, making it an easy stop. However, as a popular attraction, parking can fill up quickly, especially during peak seasons. Arriving earlier in the day is often recommended to secure a spot.
Absolutely! Tunnel Rock is considered very family-friendly. The paved path and easy access make it suitable for visitors of all ages, including those with strollers. It's a quick, engaging stop that offers a unique photo opportunity and a chance to walk through a piece of history.
Within Sequoia National Park, pets are generally permitted on paved roads, in campgrounds, and in picnic areas. This means dogs are typically allowed on the paved path leading to and through Tunnel Rock. However, they are not allowed on unpaved trails or in wilderness areas. Always keep dogs on a leash and clean up after them.
Yes, Tunnel Rock offers excellent accessibility. There is accessible parking nearby, and a paved path leads directly to the old roadway beneath the rock, making it an easy and worthwhile stop for all visitors, including those using wheelchairs or with mobility challenges.
For a quick stop at Tunnel Rock, comfortable walking shoes are sufficient. If you plan to explore the surrounding areas or nearby trails in Sequoia National Park, it's advisable to wear sturdy hiking shoes, layers of clothing suitable for varying mountain weather, and bring water. Be mindful of potential poison oak in the region, especially if venturing off paved paths.
Visiting Tunnel Rock itself is a relatively quick experience, often taking only 15-30 minutes to walk through, take photos, and read any interpretive signs. It's an ideal stop for those traveling along the Generals Highway who want to experience a unique landmark without committing to a long hike.
Tunnel Rock is located within Sequoia National Park, which has limited commercial services directly adjacent to the monument. For cafes, pubs, and accommodation, you would typically need to travel to the nearby town of Three Rivers, which is just outside the park's Ash Mountain Entrance, or to other developed areas within the park.
Tunnel Rock can be visited year-round, with each season offering a different perspective. In winter, the area can experience snow and ice, especially at higher elevations within the park. While Tunnel Rock itself is at a lower elevation (approximately 597 meters), road conditions on Generals Highway can be affected. Always check park conditions and road closures before visiting in winter, and be prepared for colder temperatures.
Tunnel Rock is located within Sequoia National Park, so standard park entrance fees apply. These fees grant access to the park and its attractions, including Tunnel Rock. No separate permits are typically required for a general visit to Tunnel Rock itself, though permits may be needed for backcountry camping or specific activities within the wider park.