Pull over on the side of the road between towns and walk 50m off the road and there's a good chance that you're the first person to stand there in a century, if not a millennium or ever.
You don't understand how long a century / millennium is. People pull off the road to pee all the time, plus people were obviously there when the road was built. Add in hikers and stranded motorists and I bet every piece of ground near that highway has had a person step on it (except for something on the side of a mountain or something).