In the pale light of sunrise, we survey the open expanse of Yellowstone’s Lamar Valley, searching for wolves. Alongside expert naturalist guides, with spotting scopes poised, we hope to spy a pack emerge from the forest, energized by the awakening day. In the distance, a large male halts and sniffs the frozen air. Elegant predators, wolves are an important part of the Yellowstone ecosystem, where great herds of elk, snow-crusted bison and other prey provide sustenance. Winter’s white mantle offers a pristine backdrop against which to search for these elusive icons of wilderness. The landscape holds magic, too, with steaming geysers, bubbling mud pots and trees covered in glittering ice crystals beneath an immaculate blue sky. Discover Yellowstone and the Tetons on a rare winter wildlife safari—your spirit will never be the same.