Wednesday marks the start of the largest cross-country ski race in North America – the Birkebeiner.
Alongside the 43k Birkie and the 14k Prince Haakon is the Barkie Birkie, a skijoring race where competitors ski while strapped to their dogs.
It’s a frigid winter day in Manitowish Waters, WI, but Tim Fitzgerald wears only a light jacket.
“Normally we don’t wear very many clothes when we’re skiing,” he said.
At a snow-covered trailhead, groups of fat-tire bikers and solo skiers take off through a network of interconnected paths.