I knew someone at school who got a summer job identifying lost native trails. The government wanted to resurrect them as modern trails. The result: basically

I knew someone at school who got a summer job identifying lost native trails. The government wanted to resurrect them as modern trails. The result: basically every trail would have been down the middle of a divided highway or along a railway track. It turns out that native people's then didn't like walking up and down hills anymore than cars and trains do today. The project was axed.