a mile marker, that is where you are in time right then.
i was coming back from vacation several years ago pulling my boat when a wheel bearing locked down on my boat trailer. i safely navigated to the shoulder and called 911 for assistance. one of the first questions the 911 operator asked was “at what mile marker are you?” once that was established, assistance came quickly and i was able to get going again toward my destination. what if i had asked, “what is a mile marker?” or answered, “oh, i don’t know. i’m just on i-85 someplace.” they would have eventually found me, but when you know specifically 