My stepmother has an Irish Setter that ran away, or was taken about 4 yrs ago. She lived in North St Paul at the time. They found the dog in St Paul about 25 miles away. This dog would have to had cross 3 interstate freeways to get to where they found her. Anyways, she had a chip implanted by her breeder in California. My father got a call about 4 days later saying that his dog was in the St Paul Humane Society. So, a chip is a great idea. If you have a dog that is a runner, go for it.