
Working breed from New Hampshire, United States
The Chinook is a large, athletic American sled dog with a distinctive tawny double coat. Bred for strength and endurance, it is known for combining power with a calm, gentle temperament. This versatile working breed was developed for drafting and sled-dog racing in New England conditions. Its temperament is described as intelligent, calm, devoted, friendly, and eager to please. However, individual dogs may vary. The Chinook's energy level is rated 4 out of 5, and its trainability is also 4 out of 5. Grooming needs are moderate (3 out of 5), but shedding is high (4 out of 5). It is generally well-suited to children (4 out of 5) and other dogs (4 out of 5), but less suited to apartment living (2 out of 5). Estimated adult weight ranges from 25 to 41 kg for both sexes, and estimated adult height ranges from 58 to 66 cm. Estimated lifespan is 12 to 15 years. Recognition status varies by registry.
The Chinook was developed in the early 20th century by polar explorer Arthur Treadwell Walden in New Hampshire, United States. Walden crossed Mastiff-type dogs with Huskies and Belgian Shepherds to create a sled dog suited to New England conditions. The breed was named after the foundation male 'Chinook'. The Chinook was bred to be an ideal sled dog for drafting and racing in the region. Its history is tied to Walden's expeditions and the breed's working purpose as a sled dog. The exact dates of development and recognition are not provided in the supplied facts, but it is known that the breed was recognized by the American Kennel Club (AKC) in 2013. However, recognition status varies by registry, and no other specific registries are mentioned.
Breed tendencies are general guidance. Individual behavior depends on genetics, socialization, training, health and environment.
Higher daily exercise demand
Typically responsive to training
Moderate compared with other breeds
Higher shedding tendency
Supervise every dog–child interaction.
Introductions and socialization still matter.
Exercise, enrichment and noise tolerance affect fit.
Modelled tendency · medium confidence
Modelled tendency · medium confidence
Modelled tendency · medium confidence
A general morphology-based tendency. Individual dogs still require shade, shelter, water, acclimation and weather-appropriate activity. Method: climate-morphology-v1.
No Chinook-specific screening programme or peer-reviewed disorder-prevalence study is currently attached to this profile. This is not evidence that the breed has no health risks. Owners should use routine preventive veterinary care and discuss screening appropriate to the individual dog's history, examination and family line.
Veterinary disclaimer: This profile is educational and does not replace examination, diagnosis or treatment by a veterinarian.
Reviewed feeding guidance will appear after an approved source is imported and editorially reviewed.
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The Chinook is a large breed. Estimated adult weight for both males and females ranges from 25 to 41 kg, and estimated adult height ranges from 58 to 66 cm. Estimated lifespan is 12 to 15 years. These are modelled estimates, not exact figures.
The Chinook is described as intelligent, calm, devoted, friendly, and eager to please. However, individual dogs may vary, and not every Chinook will exhibit all these traits consistently.
The Chinook has an energy score of 4 out of 5, indicating a high energy level. It likely requires regular, vigorous exercise, but specific exercise needs are not detailed in the supplied facts.
Grooming needs are rated 3 out of 5 (moderate), but shedding is rated 4 out of 5 (high). The breed has a double coat and tawny color. Regular brushing is likely needed to manage shedding.
The Chinook has a child suitability score of 4 out of 5 and a dog compatibility score of 4 out of 5, suggesting it is generally well-suited to families with children and other dogs. However, individual temperaments can vary.
The Chinook has an apartment suitability score of 2 out of 5, indicating it is less suited to apartment living. It likely needs space and a yard, but specific housing requirements are not provided.
The Chinook originated in New Hampshire, United States. It was developed in the early 20th century by polar explorer Arthur Treadwell Walden, who crossed Mastiff-type dogs with Huskies and Belgian Shepherds to create a sled dog for New England conditions.
Image source: The Dog API. Last reviewed 7/20/2026.