They call them the greenways.
They're prehistoric trackways that thread their way across the landscape. The famous Ridgeway, which follows the line of ridges across the heart of southern England, is said to be more than 5000 years old. It is part of the old Icknield Way, named for the Keltic Iceni tribe of more than 2000 years ago. (Boudicca was queen of the Iceni.)
In fact, such greenways exist all over the world. I live just a few feet from one myself.
These days Lake Street isn't very green. It looks pretty much like any four-lane main drag in America, lined with mom-pop eateries (where these days you can get tripe soup, corn fungus tacos, and whole roast guinea pig), convenience stores, and halal groceries.
But beneath the pavement runs the old Indian trail that led from the Dakota summer village on Bde Maka Ska ("White Earth Lake," latterly known as Lake Calhoun) down to the Mississippi. The old tracks often lead to water.
The greenways were the true ley-lines of old. Beneath the asphalt, they still pulse with ancient power.