The Chinook is a rare breed of sled dog, developed in the state of New Hampshire by Arthur Treadwell Walden who had a farm in Wonalancet in the White Mountains, during the early 20th century.

Chinook, was born in Wonalancet 100 years ago on Jan. 17, 1917. He was a mixed-breed dog, tawny with a black mask, with the intelligence, power, endurance, speed and friendly nature Walden was ...