As you have by no doubt guessed now, what makes an American dog breed is the intermingling of Old World dog breeds with the local strains found in America.
Another such breed to have been ratified is the Chinook, the state dog of New Hampshire, in 1989. The Chinook is a rare breed of sled dog bred in the 20th century.
Origins
Chinook was a crossbreed of an Alaskan Husky with some kind of Mastiff-like dog.
This droopy-eared sled dog became so famous that eventually Shepherd breed owners from all over the state were paying Walden for the privilege of breeding their dogs with Chinook the stud.
Description
Chinooks can stand up to 27 inches tall and weigh up to 90 pounds. As this breed was designed to pull a sleigh, it is a rather densely muscled work-dog. The ideal coloring for a Chinook is to have fur the color of honey all the way to a reddish-gold hue.
Chinooks are wonderful family dogs, despite their size. A Chinook is typically affectionate and playful, yet easily trained despite their almost-whimsical nature. They are also pack-dogs, so do well with other dogs, as well as being characterized as having a special relationship with children.