A series of infrastructure improvement projects at Grand Teton National Park may impact visitors during the 2026 summer season. The park says the projects could impact road and trail access in some areas through mid-November.
“This work represents an important investment in the future of Grand Teton National Park as we approach the park’s 2029 centennial,” said Superintendent Chip Jenkins. “The improvements underway over the next several years will help ensure visitors can safely access and enjoy this landscape while we continue to protect the resources that make it so special.”
Moose-Wilson Road, Death Canyon Road and Death Canyon Trailhead
Phase 2 of the multi-year Moose-Wilson Road rehabilitation will improve Death Canyon Road and Trailhead and construct a road realignment near Moose. Moose-Wilson Road between the Granite Canyon Entrance Station and the Laurance S. Rockefeller Preserve is currently open, and the northern segment between the preserve and Moose will open June 20.
Death Canyon Road and Trailhead (accessed via Moose-Wilson Road) will be fully closed through mid-November, with a delayed reopening anticipated in 2027.
Initial construction for a roundabout near the Moose Entrance Station will also begin this summer, affecting Teton Park Road near Moose. Visitors should expect delays while crews construct a temporary bypass ahead of construction in 2027. The multi-use pathway will remain open, and bicycling north from Moose is a good alternative for reaching destinations like Jenny Lake.
Taggart Lake Trail
The northern segment of Taggart Lake Trail, between the first junction and Bradley Lake Trail, will be closed through November 15, 2026 for trail rehabilitation. Work includes repairs, regrading, and accessibility improvements to enhance the visitor experience.
The Taggart Lake Trailhead and parking area will remain open, and Cottonwood Creek Picnic Area will remain open through late summer. Taggart and Bradley lakes will still be accessible via alternate marked trails.
Mormon Row Historic District
Mormon Row will remain open throughout the season. Construction is scheduled from mid-June through mid-November. Visitors should expect construction equipment, noise, and localized disruptions.
The project expands pedestrian and cyclist access and includes accessibility improvements. This is the final phase of a multiyear project.
North Park Road (Highway 89/191/287)
Construction between Leeks Marina and Lizard Creek Campground will result in nighttime delays of up to one hour between 9 p.m. and 6 a.m. Daytime travelers should expect delays of up to 15 minutes due to one-lane alternating traffic.
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