Reconnecting fragmented landscapes - Yellowstone to Yukon Conservation Initiative

Reconnecting fragmented landscapes

A wildlife overpass stretches over a two-way highway.
The new Osburn wildlife overpass in north Idaho. Credit: Idaho Fish and Game.

Interstate 90 just east of Coeur d’Alene, Idaho, winds through the Silver Valley alongside picturesque lakes and through misty pine forests as it works its way to the Montana border.

This scenic yet incredibly busy highway hosts thousands of travelers each day. That traffic has proven deadly for wildlife, and a two-mile stretch near the historic town of Osburn recorded the second-highest density of roadkill on the stretch of I-90 between Seattle and Boston in the past decade, with at least 75 animals struck by vehicles.

The community decided to take action, partnering with Y2Y, Idaho Transportation Department, and others to add fencing to turn an abandoned bridge over the highway into a wildlife crossing to keep wildlife and people safe. “The funnel fencing is working well to keep animals safe as they move through their habitat. Cameras already show deer regularly using the overpass,” says Laura Wolf, regional wildlife biologist with the Idaho Department of Fish and Game.

Like other crossings, the Idaho crossing connects key habitats in the region, helping wildlife access food and mates and reducing collisions between wildlife and vehicles. The crossing is one of 204 crossing structures currently bridging the Yellowstone to Yukon landscape, with nine of these structures located in Idaho alone.

2025 has been an important year for habitat connection.

Elsewhere in the region we also made meaningful progress to enhance wildlife connectivity and improve safety for communities and visitors to the Rockies.

In Montana, public polling revealed growing support for wildlife crossings, helping to create the right environment for Y2Y and partners to work effectively with government officials to move projects forward. As a result of this broad and diverse public support, the governor signed two new pieces of Montana legislation to commit roughly $500,000 annually to advance wildlife crossings.

Through the Reconnecting the Rockies project in Alberta and British Columbia, Y2Y worked with non-profits, Indigenous and non-Indigenous communities, scientists, government, and industry. This coalition secured agreement for multiple wildlife crossings along Highway 3 in a key corridor spanning the Canadian–U.S. border and the Alberta–British Columbia (B.C.) boundary, linking Banff National Park with the Waterton-Glacier International Peace Park. Y2Y was instrumental in securing Parks Canada funding for the latest phase, embedding 10 crossing points connected by fencing along Highway 3 in Alberta and B.C., including the just-completed Rock Creek underpass — a hotspot for wildlife-vehicle collisions expected to pay for itself in under 15 years through savings on property damage, insurance costs and more.


Dr. Clayton Lamb checks wildlife cameras on Highway 3. Credit: Nicole Olivier.

We also achieved major connectivity goals through strong partnerships between Y2Y, landowners, and other organizations.

Two key western Montana habitat linkages for grizzly bears and other wide-ranging wildlife will be protected from subdivision and development after The Vital Ground Foundation and Y2Y teamed up to conserve two critical pieces of land along I-90 on either side of Missoula. Both projects carry significance for region-wide grizzly bear connectivity, conserving low-elevation habitat near existing underpasses that wildlife use to cross under the highway and connect mountain ecosystems. These projects were made possible by voluntary, private land conservation efforts by landowners and Y2Y donors.

In October, The Nature Conservancy of Canada completed a key land purchase in southeast B.C.’s Elk Valley, conserving 45,000 hectares (112,000 acres). Y2Y was proud to contribute to this effort of securing parcels essential in keeping wildlife in the Y2Y region connected. This landscape is part of the greater Kootenay Forest Lands projects, and holds critical migration corridors for wolverines, lynx, grizzly bears, wolves, and other wildlife who need large ranges to survive, and strengthens wildlife connectivity in one of B.C.’s most iconic landscapes.


The newly protected Kootenay Forest Lands. Credit: Nick Nault.

Thanks to your support, Y2Y’s landscape connection team can continue their important work identifying and restoring critical corridors across some of the region’s busiest roads and most important habitat connections.