Bumpass Hell Trail and Boardwalk Rehabilitation
Bumpass Hell Trail and Boardwalk Closed in 2018 for RehabilitationView information about the closure including the closure map and recommended alternatives to visiting Bumpass Hell here.
A Multi-Year Project
In 2018, the NPS will begin a multi-year project to rehabilitate the Bumpass Hell Trail and boardwalk. The purpose of project is to ease maintenance for the Bumpass Hell Trail and boardwalk, while preserving natural and historic resources, improving interpretive opportunities, and accommodating high visitor use to and within the Bumpass Hell Basin.
The hottest and most vigorous hydrothermal features in Lassen Volcanic National Park are at Bumpass Hell. A three-mile round-trip trail―one of the most popular in the park―provides access to the Bumpass Hell basin. Within the basin, a boardwalk traverses a portion of the hydrothermal area and additional trails offer access to the southern portion of the basin and connect to additional area trails. While Bumpass Hell is a popular destination for park visitors, it is also a dynamic geologic area in which the only predictable element is change.
Bumpass Hell Rehabilitation Project Underway
Lassen Trail Crew has begun work to rehabilitate the Bumpass Hell Trail and boardwalk following the completion of the Environmental Assessment (EA) process. The final EA identifies rehabilitation actions identified in Alternative 2 with some minor modifications. View the Environmental Assessment at parkplanning.nps.gov.
Improving the Historic Trail
The original Bumpass Hell trail was constructed in 1935 by the Civilian Conservation Corps. Trail improvements will both preserve the historic character of the trail and improve visitor access. Trail improvements between the trailhead and basin overlook include:
Reconstructing the Basin Boardwalk
Adding a Second Trail into the Basin
A 0.2-mile historic trail will be restored to provide a second route between the basin overlook and the basin. Because this trail is less steep and melts out from snow faster than the existing trail, its addition should improve access in the spring. The new trail will include a close-up look at shallow, vigorously boiling pools of clear water known as frypans and previously inaccessible wetlands. A newly constructed bridge and short section of boardwalk along the trail will allow safe access and protecting these fragile environments.
Overlooks along the trail and both within and above the basin will be expanded or enhanced to improve the visitor experience. Overlook improvements include:
Last updated: August 23, 2018