I have a similar problem. My dog has a habit of chasing deer. A few minutes ago a big buck approached, snorted, and the chase was on. If I don’t catch my dog in time, it sometimes takes me hours to get him back.
You can get tracking devices for dogs, but the whole system is around $500. The difference is that the dog tracking systems are waterproof and come with a portable receiver-transmitter and a couple of collars. That’s too much of an investment for me.
My dog likes to chase rabbits, and has on about six different occasions pulled apart the chain link fence with her teeth enough to crawl through. One time she was gone for three days.
I’d like to stick on of these on HER.