To those who don’t know him, Moose doesn’t immediately register as a great hiking dog. True to his Chinese Shar-Pei breed, the quirky 8-year-old sports a grows-on-you kind of handsomeness. His wrinkled skin, sandpapery coat (Shar-Pei means “sand coat”), large blocky muzzle and wary attitude are not exactly the standard-issue kit attributed to typical outdoor types like Labrador retrievers and Border collies. But with consistent socialization and specialized training, Moose has evolved into a fine...