I remember passing the 100, 500 and 1000 mile points. Each coming with their own sense of accomplishment. But 2000 miles in my mind was unfathomable... even as I stood next to the very point that said I had walked the distance, I couldn't believe it. That's walking 100 miles 20 times, or 500 miles 4 times or 1000 miles twice! With that comes a mental challenge; I would say it is the mental challenge that was the most difficult for backpackers to overcome. There are not a whole lot of dirt paths in the world that allow you to travel 2000 miles... and I found it to be a very special thing.