The Turquoise Trail is a quirky, alternative road stretching between Santa Fe and Albuquerque. Before horses trod the route, it linked three Native American pueblos. The earliest mining activity in North America took place along the trail; local Native Americans mined a huge vein of turquoise that was visible on the surface. In the age of horses and wagons, the road ran through dusty Wild West towns, mining districts, and mountains, which were once...