A featured article in the March-April 2007 issue of TR News explores Banff National Park in Alberta, Canada, which has been a testing site for innovative passageways to mitigate the effects of roads on wildlife. The Trans-Canada Highway bisects the park, but a range of engineering mitigation measures—including a variety of wildlife underpasses and overpasses—has helped maintain large mammal populations for the past 25 years and has allowed the gathering of valuable data about wildlife crossing structures.