Read the latest area roadkill report
This report details roadkill hotspots and trends in the Jackson Hole area outside of Grand Teton National Park.
Wildlife-Vehicle Collision Hotspot Maps for Teton County
The maps indicate where wildlife-vehicle collisions involving elk, moose and deer most frequently occurred between 2011 and 2022. Roadkill data used for maps is a combination of Nature Mapping Jackson Hole observations and carcasses recorded by the Wyoming Department of Transportation and the Wyoming Game and Fish Department.
*Due to exclusionary fencing and wildlife-underpasses installed on S. Highway 89 between 2018-2022, we anticipate hotspots shown between Hoback Junction and Rafter J may be weighted by more frequent collisions (especially with mule deer) prior to the construction of these mitigation measures. Early data indicates collisions on this stretch of highway have been reduced by at least 30% in recent years.
Test Your Wildlife-Vehicle Collision Knowledge
How many moose are in Jackson Hole?
How many moose are killed by vehicles in Teton County year?
What is the cost to the driver and the community when a moose
What is the likelihood of human death in traffic accidents involving moose compared to accidents with deer?
What are statistically the worst months in Teton County for wildlife-vehicle collisions?
What is the worst day of the year in the United States for wildlife-vehicle collisions?
Learn more about our Give Wildlife a Brake projects
Fixed Radar Speed Signs
We have installed five fixed radar speed signs on WY 390 – an area of frequent wildlife movement near the vital Snake River corridor – to alert drivers when they surpass the posted day/night speed limits.
Financial support from the Community Foundation of Jackson Hole, Teton Conservation District and private donors has enabled us to purchase this series of fixed radar signs and gift them to Wyoming Department of Transportation and Teton County.
Camera Traps Show Wildlife Movement in Crossing Areas
The images also help to educate the public about the importance of removing barriers to wildlife movement while providing more information for future transportation planning and large landscape connectivity discussions.
Dynamic Message Signs
Dynamic message signs alert drivers to slow down in critical wildlife crossing areas. Their portability allows us to work with the Wyoming Department of Transportation to relocate them periodically to ensure that the signs coincide with the most current wildlife movement patterns and potential conflict zones. With thanks to generous individual donors such as the late Uta Olson, we have been able to purchase and deploy 7 dynamic message signs ($17,500 each).
Moose Ramp Plow-Outs
In 2019 and 2020, we worked with local property owners and Yellow Iron Excavating to plow snow on Fish Creek Road to create “moose ramps,” which allow moose to leave the roadway when snowbanks get deep. Due to the high amounts of snow these roads receive, snowbanks can be a major problem when they grow so tall they confine moose to the road.