Remember that your dog can suffer from mosquitoes, ticks, chiggers, flys, etc. Make sure you are using some kind of repellant. Flea and tick collars do not work well enough on long-haired dogs to be useful. Wildlife can be very dangerous to your dog. Deer can kick a dog to death.
Bears can maul a dog to death.
Raccoons will tear a dog up and can have rabies. Rattlesnakes can inject poisonous venom. Bobcats can kill a dog. Mountain Lions prey on dogs. Rodents can carry a number of diseases.