Understanding wolverines helps us develop conservation strategies. Image: Steven Gnam
Top actions | ... | ...

Sign Up For Email News Updates

Be the first to know about news, events and successes.

U.S. Route 20

U.S. Route 20
A moose crosses US-20 in Island Park. Photo: Kim Trotter
Working to protect the people we love while preserving Idaho’s wildlife is important to Y2Y.

Increasing safety for all on Idaho's U.S. Route 20 

Roads are busy in and around Yellowstone National Park as residents, tourists and trucks travel in the region. U.S. Route 20, cutting through the northwest corner of Yellowstone and running north-south along its west border, is no exception.  

Not only is this a busy transportation corridor for drivers, it’s an important wildlife corridor, too. Animals cross US-20 often too, especially as they migrate in and out of the park and move across the regionHighways are a major barrier to the wide-ranging movements that connect individual animals with diverse habitats and mates. The deaths of grizzlies, elk, bison, moose, wolves and more have all been documented following collisions with vehicles as they attempt to cross US-20  a road that will only get wider and busier in the coming years.  

Right now, Idaho Department of Transportation is working to widen and improve US-20 from Ashton, Idaho to the Montana state lineWider roads with increased traffic and higher speeds increase wildlife-vehicle collisions. This is aopportunity for Idaho to build mitigation for wildlife into the initial planning, budgeting, and engineering process for this project from the outset. It’s also an opportunity to address this barrier for wildlife and make this highway safer for the drivers and wildlife on it. 

How we will accomplish this

Working to protect the people we love while preserving Idaho’s wildlife, an integral piece of the state’s economy and cultural identity, is important to Y2Y.  

In addition to known crossing points for moose and migrating elkwe are working with local partners to identify known hotspots for wildlife-vehicle collisions on US-20. Elsewhere in North America wildlife underpasses, overpasses, and fencing have been shown to reduce wildlife-vehicle collisions by 80 to 90 percent.   

What Y2Y is doing

This is an opportunity to make Idaho’s roads safer not only for drivers but wildlife, too. All while preserving Island Park’s economic and cultural heritage. Let’s make our roads safer, together. 

— Kim TrotterU.S. Program Director 

Who we work with

Right now Y2Y is working with Idahoans as well as partners at Greater Yellowstone CoalitionIdaho Wildlife FederationTeddy Roosevelt Conservation PartnershipIdaho Fish and GameThe Nature ConservancyFuture WestWildlife Conservation Society, Caribou-Targhee National ForestCinnabar Foundationand more to accomplish this. 

Here are four ways you can help

Take action to get an overpass built east of Canmore.

Follow the campaign on Facebook.  

Join us





Take action to get an overpass built east of Canmore. Let Idaho know you want US-20 to be safer. Send a comment now.  

Write Your Letter





Support connecting and protecting habitat so that people and wildlife can thrive.

Provide a gift to protect our wild spaces and places

Donate now





Take action to get an overpass built east of Canmore. Stay in the know and learn of opportunities to help on this and other campaigns through our newsletters.  

Sign up