Where did John and Buck go in call of the wild?

In "The Call of the Wild" by Jack London, John Thornton and Buck go on a journey through the Yukon Territory during the Gold Rush. They travel along rivers and through rugged wilderness, seeking fortune and adventure. Their bond grows stronger as they face challenges together, emphasizing themes of companionship and survival in the wild. Ultimately, Buck's journey leads him to embrace his primal instincts and the call of the wild.