Albert Johnson, better known as the “Mad Trapper of Rat River,” was a mysterious fugitive who sparked one of the most famous manhunts in Canadian history. In the winter of 1931–32, after a violent confrontation with the Royal Canadian Mounted Police near the Rat River in the Northwest Territories, Johnson fled into the frozen wilderness. For weeks, he evaded capture through brutal Arctic conditions, surviving blizzards and deep cold while eluding trackers and dogsled teams. The chase ended in February 1932 after a 240-kilometer pursuit when Johnson was killed in a final gun battle. His true identity and origins remain unknown, fueling decades of speculation and legend about the enigmatic trapper.