In mid-February this year, temperatures dropped to minus 40 and wind howled over mountain passes as 26 mushers competed in one of the most gruelling races in the world - the Yukon Quest. For up to 16 days, hardy sled dogs and their intrepid mushers attempted to scale mountain summits and safely cross frozen rivers in the remote wilderness between Whitehorse in the Yukon and Fairbanks, Alaska.
As they traversed the 1600km trail, competitors faced blinding blizzards and biting cold temperatures, forcing some teams to drop out with severe frostbite. There's also fatigue, injury and disorientation. However the event is a major highlight on North America's winter calendar and so once a year this remote corner of the world comes alive with the frosty breath and haunting howls of hundreds of sled dogs. Competitors are lured from far and wide for more than the glory of being crowned champion. For most, it's about the challenge, escape and camaraderie. Below is a glimpse of what it's like on the trail of the Yukon Quest.
Morning sunlight captures the frosty breath of sled dogs as temperatures plunge to around -35 degrees Celsius on the first day of the Yukon Quest.
A Yukon Quest sled-dog team crosses the frozen Takhini River on the outskirts of Whitehorse.
Canadian Ed Hopkins and his team charge across the Takhini River on the first day of the Yukon Quest.
American veteran competitor Scott Smith and his dogs on the Takhini River.
A Yukon Quest campsite at Yukon River Campground in Dawson.
The start date for next year's Yukon Quest is February 6, 2016.
For more details, visit: yukonquest.com