If you seek a companion for your High Sierra adventures, look no further than Jack, seen here enjoying an outing to the Feather River with his friends at High Sierra Animal Rescue. This guy, believed to be a Lab/pug mix, may be small, but he's got a bigger dog's adventurous spirit. At 6, he's ready to join you on the trail, at the shore, and also in some cozy relaxing when day is done. Read more.