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Zion-Mount Carmel Tunnel: An Engineering Marvel

Drive through history! The Zion-Mount Carmel Tunnel: an engineering marvel connecting Zion's stunning landscapes since 1930.

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The Zion-Mount Carmel Tunnel, a 1.1-mile passage completed in 1930, is a remarkable feat of engineering that connects Zion National Park's upper and lower canyons. Carved through solid rock, the tunnel provides access between Zion, Bryce Canyon, and Grand Canyon National Parks, enhancing the scenic drive with its gallery windows offering glimpses of the canyon.

A brief summary to The Zion-Mount Carmel Tunnel

  • Zion – Mount Carmel Hwy, Hurricane, Utah, 84737, US
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Local tips

  • Drive slowly and carefully through the tunnel, paying attention to posted signs and ranger instructions.
  • If driving an oversized vehicle, be prepared to pay a $15 fee for a tunnel permit and possible delays for ranger escorts.
  • Consider stopping at the Canyon Overlook Trail just east of the tunnel for rewarding views of Zion Canyon.
  • Be aware that parking near the Canyon Overlook Trail is limited, especially during peak season; arrive early or be prepared to walk from further away.
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Getting There

  • Driving

    From Springdale, the main gateway to Zion National Park, enter the park through the south entrance. Follow Highway 9 through the park; the scenic drive leads directly to the Zion-Mount Carmel Tunnel. Be aware that during peak seasons, parking within Zion Canyon fills up quickly. If parking is full, park in Springdale and use the free town shuttle to the park's pedestrian entrance. From the east entrance, the tunnel is located on Highway 9, heading west towards Zion Canyon.

  • Public Transport

    From St. George, Utah, you can take the SunTran Zion Route, a paid shuttle service, to Springdale. This route has stops in Washington, Hurricane, La Verkin, and Virgin. From Springdale, use the free town shuttle (Springdale Line) to reach the Zion Canyon Village. Enter the park and board the free Zion Canyon Shuttle (Zion Canyon Line), which operates from the visitor center. To reach the Zion-Mount Carmel Tunnel, exit the Zion Canyon Shuttle at the Canyon Junction stop and walk east along Highway 9. Note: The tunnel is primarily for vehicle traffic, and walking through it is not recommended.

  • Parking

    Parking near the Zion-Mount Carmel Tunnel is limited, especially at the Canyon Overlook Trailhead. Two small parking lots are available near the trailhead just east of the tunnel's upper entrance. Arrive early, especially during peak season, to secure a spot. Parking on the side of the road is discouraged and may result in citations. If the lots are full, consider parking further away in designated turnouts and walking to the trailhead, being mindful of traffic.

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Discover more about The Zion-Mount Carmel Tunnel

The Zion-Mount Carmel Tunnel is more than just a convenient passage; it's a testament to early 20th-century engineering and a vital part of Zion National Park's history. Constructed between 1927 and 1930, the 1.1-mile tunnel was built to improve access between Zion and other national parks, including Bryce Canyon and the Grand Canyon. Before its creation, traversing the rugged terrain between the park's upper and lower canyons was a challenging and time-consuming endeavor. The tunnel's construction was a monumental task, undertaken by the Nevada Construction Company, which used mining methods to bore through the thick Navajo sandstone. The project cost nearly $2 million at the time (approximately $26 million today) and involved removing over 450,000 cubic yards of rock. The tunnel was designed with six large gallery windows cut into the sandstone cliffs, providing ventilation, light, and stunning views of the surrounding scenery. These windows also served as a convenient way for work crews to dispose of the rock they were excavating. Today, the Zion-Mount Carmel Tunnel remains a popular and essential feature of Zion National Park. It is reinforced with concrete ribs to support the sandstone structure and is monitored electronically 24/7 to prevent rockfall. Due to safety concerns and increasing traffic, the National Park Service manages the tunnel with traffic control measures. Oversized vehicles require a $15 permit to pass through the tunnel and are escorted by park rangers to ensure safe passage. Beginning in mid-2026, large vehicles will be rerouted from the Zion-Mount Carmel Highway to improve safety and protect resources. The maximum vehicle size allowed will be no more than 7' 10” wide, 35' 9” long and 11' 4” tall and 50,000 pounds. Visitors driving through the tunnel should be aware of their surroundings and drive slowly. Stopping is prohibited, and drivers should follow all directions from park rangers. The Canyon Overlook Trail, located just east of the tunnel, offers a short, family-friendly hike with panoramic views of Zion Canyon.

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