YELLOWSTONE TO YUKON.

On one of the final legs of his 3,400-kilometer trek between Wyoming's Yellowstone National Park and Watson Lake, Yukon, Karsten Heuer watched helplessly as his travelling companion and future wife, Leanne Allison, struggled to follow him. For Heuer, the drama provoked some soul-searching about the expedition he undertook in support of an ambitious proposal to carve out a conservation corridor from Yellowstone to the Yukon. A wildlife biologist who works as a seasonal park warden in Banff National Park and Ivvavik National Park in the northwest corner of the Yukon, Heuer was inspired to do his trek after learning about the Y2Y initiative, which was first proposed in the early 1990s. It has since evolved into a binational campaign involving over 160 conservation organizations.