A dog can memorize a distance of about 100 kilometers while riding in a car. If the dog gets off the car and urinates to mark the distance, it can remember up to about 1,000 kilometers. However, if the dog's memory is relatively poor, it is possible that the dog will only remember the distance. It’s dozens of kilometers away, so it depends on the actual situation of the dog.
Tips:
Dogs generally identify their way through smell, so they usually urinate and leave a smell every time they walk. In this way, the dog can find its way home based on the marks.